Me: Hello everyone and welcome to another fantastic chapter of The Cross-Dimensional Adventures of Ben 10: Hero meets Ninja Turtles. I like to thank those for reviewing and following this story. It really inspired me to go on and complete this story. And because of the reviews, favourites and follows on this story, I've decided to include some more action. I don't own TMNT 2012 and Ben 10. Now sit back and read the fic.

Chapter 2: Back home

The helicopter spun around uncontrollably as it began descending. At the rotor, the flames were growing causing smoke to increase in the process. As much as Casey and April tried to keep the helicopter in the air, the plane kept descending. Due to gravity they found themselves plummeting faster to the ground.

THEME SONG

Insert Teenage mutant ninja turtles 2012 theme song here

THEME SONG

The Ninja turtles, Karai and Humongousaur watched in horror as the helicopter began crashing to the ground. None of them knew what to do as it seems futile and mostly because they were frozen in shock to do anything. Ben's hero instinct suddenly kicked in and he ran to the edge of the balcony. Then he jumped off the building, leaving a lot of gasps from his turtle friends.

Leo and his brothers stared at the exact place Ben jumped off. They didn't know if he would survive, but with his huge size it seem futile. And even a person like Mikey would know that Humongousaur size will sent him plummeting faster to the ground. By the time he could get to the falling helicopter it would be too late for the two occupant teens and him.

The Ninja turtles thoughts and fear was shook off as they heard an evil laughter from the Shredder. They turned to the evil villain with angry glares, their eyes turning pure white as they held their weapons.

"Oh how the mighty has fallen." The Shredder laughed again.

Leo let out a frustrated groan in response, "You're going to pay, Shredder!"

Knowing a fight was going to start, Karai brought out her sword to fight. However, her father held his hand as a sign she should stand down. she wasn't surprise of her father's command, knowing he wanted to deal with the turtles himself.

"Come get me, Leonardo." Shredder said, stretching out his hands far from his sides for his blades to sharpen out.

Immediately, Leo charged at him with his Katanas. His brothers also followed, knowing he was going to need their help. Quickly, the Ninja Turtles attacked Shredder with everything they got. Leo used his Katana blades to slash at Shredder, but the villain found dodged them. Then when Donnie swung his Bo staff at him, Shredder swiftly broke it with a kick and then commencing a roundhouse kick to the turtle's face.

Raph cried out in anger as both him and Mikey jumped at the Shredder. But the villain was quick as he leapt backwards to avoid the attack and then charging at the two turtles. Both mutant ninjas got into fighting positions to fight off the Shredder, when suddenly Leo landed in front of the two and swung his katanas to block Shredder's blades.

"Is that all you got Leonardo?" The Shredder mocked him.

Then he leapt backwards before Donnie landed on where he once stood. The four ninja turtles regrouped by standing side by side. Then with a command from Leo, the turtles charged at Shredder with full might. They began sending powerful and skillful moves against the Shredder. However, the Shredder was better trained as he avoids most attacks and sent a few blows at the turtles.

Despite their best efforts, The Shredder was able to encounter much of their moves. Soon, both Raph and Mikey were knocked to the ground unconscious and soon Donnie followed. The only two fighters left were Leo and Shredder. The two fighters gave everything they got at each other. But Leo soon began receiving serious hits from Shredder. He was able to prevent getting injured by the Shredder's blades, however the swift and powerful kicks he got began to weaken him. Before he reacts, the Shredder sent his two fingers to his shell like a blow and he was sent flying backwards like something massive hit him.

Tired and weak, Leo let out a groan as he tried getting back to his feet. But a foot dropped on his chest, forcing him to the ground. He looked up at the one responsible and groaned in anger.

"Good bye, Leonardo." The Shredder said darkly, raising his gauntlet blades to strike the final blow.

But suddenly, a green blast hit him at the chest, sending him flying. The Shredder was able to land on his feet and shocked wide eyed at who stood alive. Standing a few meters from The Shredder was a well built ghostly man with green hair, wearing a green striped white shirt with short sleeve and green pants along with a green cape attack to the shoulder back and an Omnitrix symbol on his chest. Beside, the ghost was Casey and April without a scratch on them.

"Impossible! I thought you were all dead!" The Shredder yelled in anger.

The ghost only smirked in response, "I know. I get that all the time." Then he turned to April and Casey, "Go help out Leo and the others, I got this guy."

"You sure?" April asked.

"Yeah." He nodded.

With that said, both April and Casey ran to the fallen turtles aid. As the two left, Ben and Shredder both faced each other. The anger within the Shredder was fierce as he got ready for another fight with the hero. Ben on the other hand smiled at the villain, causing him to get angrier. Then immediately, the two charged at each other. Shredder swung his blades at Ben, but they passed through him. Before he knew it Ben was gone as a mist.

The Shredder was became alert as he looked around defensively himself, "Come out, boy!" He kept walking backwards; looking his front in case of the Ben might attack. But then he felt a finger tapped him on the shoulder, causing him to act in reflex. He swiftly turned behind him and swung his blades. However, he met nothing but air, "Come out and taste defeat, you coward!"

"That's not how you say please." Ben's ghostly voice taunted in the air.

Shredder was able to trace the location of the voice and turned behind him. As expected, Ben was standing in full view with his proud smirk on his face.

"Miss me."

With much anger, The Shredder charged at him with his left blade ready to strike. Just as he closed the gap between him and his opponent, Ben suddenly split into two, leaving a gap as Shredder swung his blade at where he once stood. The Shredder stopped momentarily as he saw the Ben at his right begin to duplicate around him. In mere seconds, Shredder was in the middle of circle with ten of Ben's duplicates surrounding him.

The Shredder took the time to analysis each of his opponents duplicates. The smirks on their faces made him want to burst out in anger. Rather he silently looked around them and noticed how they weren't attacking him. He soon came to realization that the teen hero was playing with him and wasn't serious about the fight. The Shredder couldn't hold his patience and anger and soon began to fight them all.

However, as he sent each of his gauntlet blades at the duplicate, each one of them turned to mist as a result. He became angrier with every strike and soon lost concentration of how many he was attacking. Eventually, exhaustion took over and he b began to pant. All around him, no Ben duplicate was around. He was pleased and more relief of what he had done.

But then he felt a finger tap his shoulder. Immediately, his strength returned as he turned behind him and sent fist straight at Ben. However, his fist passed through a hole in Ben's stomach. Before he could react, Ben sent both his glowing hands at his helmet and sent a surge of ecto energy. The energy immediately spread all over Shredder's body, causing the villain to feel weakened and then falling to the ground unconscious.

With the Shredder down, Ben smiled proudly to himself. He then heard footsteps and turned behind to see the Ninja Turtles back on their feet with Casey and April standing with surprise expressions on their faces.

"You took down the Shredder." Donnie said, a smile on his face.

"That totally cool!" Mikey exclaimed excitedly.

"I could have handled him." Raph scoffed, though a smile came to his face.

"Sure you could." Casey said sarcastically as he patted Raph back.

Leo walked forward to Ben and smiled proudly at the hero, "Thanks, Ben. We had a lot of close calls, but you just took him easily."

"It was nothing. I was only…" He began to talk about himself, when he noticed Leo walking to the unconscious Shredder. He silently watched the ninja turtle make his way to the villain and he was horrified of what Leo did next. Leo raised his katana in the air, ready to strike down on the Shredder. Realizing what was going to happen, Ben dashed at him in light speed and held his hand, "What are you doing?!"

Leo turned to Ben and gave him a sure look, "I'm finishing this while I can."

"No you're not." Ben said with a serious look, "Not while I'm here. I may not know about ninjas, but there isn't going to be any murder while I'm here. Now you're going to put down you're weapon and leave The Shredder for now, got it?"

Leo stared at the hero with an angry glare. He couldn't understand Ben's behavior. While he wasn't a murderer himself, Leo knew to take the Shredder out before things could get worse. But as he stared into Ben's ghostly green eyes he found innocence. He could understand the boy believed in justice, equality and fairness within him.

With a sigh, Leo's anger dropped, "Fine." He then let a smile crept on his face, "You're really a good kid, Ben."

Ben nodded and Leo walked to the rest. As expected, his brothers were confused at what happened. But after a little explanation from Leo and Ben, The turtles, Casey and April understood, though Raph was a bit angry about it.

However, any further discussion was interrupted as Ben and Leo tilted their heads behind them. The others followed their gazed and tensed at who they saw. Karai was walking towards them with a smile on her face. Upon seeing her, the turtles, Casey and Ben got into fighting stances. But Leo was different as he walked to Karai with a smile.

"So do you finally want to fight with us?" Leo asked.

Karai shook her head, "No, Leo. However, I want to thank Ben."

By hearing his name, Ben dropped his stance as a questioning look came over, "Why? Aren't you going to attack us?"

"Like, I'm going to be a match against four ninja turtles, two teens who know how to defend themselves and a kid who can turn into creatures with a press of a button. I have different ideas unlike my father. Thanks for sparing my dad, Ben…."

"Tennyson." Ben added.

"Well I must be going. Get out of here before the Foot Soldiers arrive." She turned her at them, but then stopped and turned her head to Ben specifically with a smirk, "I hope we meet in better circumstance, Ben Tennyson." With that said, she turned back to her unconscious father.

Ben and the others stared at her before finally coming in conclusion of what happened. Ben then raised his left hand to the air and it began to glowing green. Just like his hand, The Ninja Turtles, Casey and April body began to glow. In less than a second, they were gone in a flash of green light.

They found themselves on the rooftop of a building in New York. All of them were relief to be back to the city, that Mikey kissed the ground in happiness. Everyone thought it was irritating, but shrug it off since he was being himself. Truly, they were really glad being back and hope to go home very soon. However, they were the thought of how Ben knew where they lived, but Ben didn't know. Honestly, he told them that he just wanted to leave Shredder's lair.

After some minor talks and Ben changing back to normal, the turtles and their friends began to lead Ben to the sewers. On their way, Mikey, Donnie and Casey were talking to Ben. Donnie was mostly fascinated by the Omnitrix, Mikey thought Ben was cool and Casey wanted to know him if the kid knew any moves. Eventually, they came to a closed manhole and Leo opened it before they all jumped in.

"This stinks!" Ben commented as he plugged his nose.

"Really?" Casey asked, sniffing the sewer air, "You're nose move be over sensitive."

They soon made their way to a door with a security lock by its side. Donnie typed the codes before opening the door to the lair. As everyone entered, Ben awed at the coolness of the lair. He had never seen a Japenese/Chinese based home and found it amazing even if it had some American features. Donnie and Mikey didn't waste a second as they dragged Ben around the lair to show him everything.

Leo watched as Ben was being by Mikey and Donnie. He could see the fake smile Ben put up and chuckled at it. He knew Ben was probably freaked out by his brothers behavior and didn't want them to know.

"Are you sure we can trust him?" Raph asked, walking to Leo with Casey by his side.

"Sure." Leo smiled, "Now there's only one thing left."

"Which is?" Casey asked with a raised eyebrow.

"Who is going to tell Master Splinter?" Leo concluded.

Meanwhile, Donnie and Mikey showed Ben practically everything in the lair. Donnie showed him some of his inventions and some of the ones he couldn't finish. Luckily, Ben was able to complete most of them with the aid of his alien form Grey Matter. Donnie was fascinated at the intelligence of the alien form and even had Ben fix some inventions that went bust. Mikey on the other hand, showed Ben some ninja moves he could do. However that was momentarily interrupted as the Omnitrix beeped.

"Unknown mutant DNA detected." The Omnitrix then beamed a yellow light that went from Mikey's feet to its head. The light died down and the Omnitrix beeped twice, "New DNA acquired."

"What was that?" Mikey asked, pointing at the Omnitrix.

"Oh, the Omnitrix downloaded your DNA, so now I can become you." Ben answered with an excited grin.

"Awesome!" Mikey and Ben then Hi-fived each other.

However, they were interrupted as they heard a voice call them, "Donatello, Michelangelo bring your guest this instant!" The two turtle brothers panicked, but decided to obey. Ben was curious about the voice, but then was filled in by the two turtle brothers. He gulped at how strict the voice sounded. He didn't want to go, but knew he had to.

Ben, Donnie and Mikey made their way to the sparring section. As they entered, they saw the other ninja turtles, April and Casey sitting in respective positions. And standing in the center with his hands behind his back was Splinter.

"Good day, Master Splinter." Both Donnie and Mikey said as they bowed respectively to their sensei.

"Welcome back, my sons." Splinter welcomed them with a smile, "Please make your way to your brothers; I wish to see the boy Ben Tennyson." Splinter gestured them to the others. Donnie and Mikey gave Ben a confident glance before walking to the others. With the two boys gone, Ben was in full view to the master Sensei.

Upon fully glancing at the boy, Splinter was skeptical about him. Leo had narrated everything Ben could do, but now he needed to be sure himself. If the Ben was what Leo and Raph claimed to be then he might be a great ally or enemy. Splinter said nothing as he causally walked to Ben. The young hero seems calm, but Splinter could see his eyes were shaking in slight fear. He glanced at the watch on the boy's wrist and wondered to himself. The watch looked a bit strange, but if ignored of its appearance then it would look like a normal wrist watch.

"I have heard great things about you, Benjamin." Splinter said calmly as he began walking around the teen. He was taking his time to see the boy from within rather than the appearance, "My sons told me you helped them save the others and even defeated the Shredder, is this true?" Splinter didn't doubt his children, but he needed to hear Ben's response.

"Yes, sir." Ben answered straightly.

Splinter then stopped to face his front, "Really? Then where do you come from?"

"From another dimension and from a town called Bellwood."

Splinter nodded, taking everything that Ben told him, "Tell me, Benjamin. If you had the chance to take out the Shredder, will you?"

Ben was hesitant, making sure not to make eye contact with Splinter. He knew that if Leo wanted to kill the Shredder then there's no doubt that their sensei would want to do the same thing, though his method might be different. Finally making up his mind, he sighed as he answered, "No, sir."

"Why?" Splinter asked, still calmly.

"Because it isn't right. My Grandpa taught me to be fair and let justice prevail. If I dare stray away from the good path then I might as well become The Shredder. I've seen a few people, some that are my friend that have fallen to the wrong path. It wasn't easily for them to come back to the light. I may not understand why The Shredder needs to be killed, but I can honestly tell you that I won't kill a villain unless as a last resort."

"Very well." Splinter then put his hand on Ben's shoulder, "Welcome to our home, Benjamin Tennyson. You are welcome to stay as much as you want."

An excited smile spread on Ben's face as he heard those words. Without thinking, he shouted out an excited, "Yes." But then he realized what he did and bowed respectively to him, "I'm so sorry, sir."

Splinter chuckled lightly, "No need to worry, Benjamin. Call me Master Splinter." With that said, he turned from him and walked to another room to meditate. No sooner did he leave that Ben was crowded by his new friends. They began talking to him about how lucky it was, though Leo wasn't worried since Splinter had accepted April and Casey easily. In fact he wondered why Splinter was so skeptical about Ben. Perhaps, it's because of how powerful he told Splinter or the fact that the kid came from another dimension.

However, that didn't matter to any of them. They were happy to have another ally that could help them win their fight to save the world. Then it was time that Ben explained more of his origin and everything about himself. Everyone in the room, expect Ben sat a few meters from him to hear better of his life story. Raph and Casey would have found it ridiculous to be hearing a thirteen year old explain his origins, but having witness what Ben could do they said nothing, but listened. Ben then began explaining from where he got the Omnitrix and his summer adventures with his cousin and Grandpa. His story continued to when he accidently got into the world of Danny Phantom and his battles with the ghosts of the dimension

The Ninja Turtles and their human friends were fascinated at Ben's origin, especially when he told about his adventures with a half ghost kid called Danny Phantom and a buck tooth kid named Timmy Turner and his magical friends. Donnie had his doubts of ghosts, saying that it was impossible, but he later reconsidered as he further thought on the matter. Mikey and April were amazed at the world with cool creatures and Leo and Casey were excited about the fights Ben went through in the universe.

Ben further explained his adventures in a world of Superheroes. At the mention of superheroes, Leo listened to every word Ben narrated. Even Raph and Casey were excited as Ben told them about the villains he encountered. But there were some time that they were sad about Ben mentioning what happened to his friend, Dani Phantom, sister of Danny Phantom. Raph had outburst in anger as he heard the further evil deeds Nefarius had committed. But eventually he calmed down and let Ben continued.

After a long explanation of his adventures, Ben was finally done. The Ninja turtles and their human friends were silent as they processed everything. But then Mikey interrupted the silence as he sprang up from the ground with an excited cry.

"That's awesome!" Mikey exclaimed happily,

Leo stood up from the ground along with everyone else, "His right." Leo said as he walked to Ben, "For a younger teenage kid, you're really strong."

"Yeah yeah yeah." Raph scoffed, "I'll like to try him out myself."

Ben smirked at Raph, "Ok, dude. But don't cry when I totally kick your butt."

"Oh it's on." Raph glared at him. He marched with the young hero with his hands clutched to fists, "You and me. Fight next dawn."

"You're on, dude." Ben replied.

Casey snickered, "Well that's money I'll spend to see."

"Ok, guys time to go." April stepped in, interrupting the tension from rising, "It's getting late and Casey and I have to leave." As she mentioned, she grabbed Casey's wrist and began dragging him away. The young black haired teen didn't complain or protest as he knew she was right. An hour or two had passed since they arrived back in New York and listening to Ben tells about his origins.

Before leaving, April and Casey waved to them as they left, "Night, guys."

"Good night!" Everyone except Ben and Donnie said good night. Ben didn't mean not to say anything to his new friends, but his attention was to another Ninja Turtle. He could see a sad look on his face that made him wonder why. He was interrupted from his thoughts as a hand shook him from his shoulder. He turned behind him to who interrupted him and saw Raph.

"Better get some sleep, Ben. You'll need it tomorrow." Raph told him before walking away to his room.

The rest of the turtles said their good night before departing to their various rooms. Ben was allowed to share a sleeping bag in Leo's room, though he was given the choice to sleep on a bed. He wasn't bothered sleeping in a sleeping bag and he didn't want to feel like a burden to the Ninja Turtles and their father/sensei, Master Splinter. Already, he was thinking about Donnie expression and felt sorry for him. It didn't take a love genius to know that he was feeling heartbroken at seeing Casey and April together.

Ben understood Donnie's pain and decided to visit him. When he was sure everyone was asleep, he got out of his sleeping bad and left Leo's room. He was able to find Donnie's room thanks to Mikey and him showing Ben every place in the lair. He carefully knocked on his door, so not to disturbed others. But he didn'y get any response so he began knocking louder and faster.

However, he was too focus on knocking that when the door opened and Donnie head came out, he knocked it.

"OW!"

Ben nervously chuckled, "Um, sorry."

"It's ok." Donnie assured him, rubbing his sour forehead, "So what do you want?"

"I just wanted us to talk."

Donnie looked at him with an unsure look, "Sure….why not. It's not like it's 3am in the morning." However, he was speaking sarcastically. But Ben didn't notice his sarcasm and walked right inside his room. Donnie let out a frustrated sigh as he closed the door and put on the room light. He then turned to see Ben sitting at a chair close to his bed, "What's going on?"

"Just take a seat." Ben said gesturing to his bed.

Donnie knew Ben was up to something. He couldn't figure out what it was, but he sure wasn't going to like it. He decided to listen to him and sat at the edge of his bed.

Ben glance at the Ninja Turtle with a serious look as he began, "Donnie, I notice how you felt earlier."

"Earlier?" Donnie asked, confused.

"Yes. I know you like April."

"Yeah, I like April." Donnie didn't know what Ben meant.

"I know you like like her."

Donnie's eyes widened as he realized what he meant. He was then sweat nervously as he smiled nervously, "What? No way. I'm just…."

"Hiding the pain to yourself." Ben concluded to his words, "Anyone, even a toddler can figure out you like her."

Knowing he couldn't hide it, Donnie slump his shoulders as a frown appeared on his face, "Yeah, you're right. I'm even surprise Leo or the others hadn't come to comfort me yet. I just feel jealous anytime Casey is around and it sickens me sometimes. I'm not even sure April and Casey are really that close."

"Sorry to hear that. I know how it feels being jealous and hurt."

"Really?" Donnie asked with a raised eye brow.

Ben sighed, "Yeah. There was the time Timmy and I were in love with Dani, though I never noticed he liked Dani the same way I did and there was the time a girl I fell in love with only thought of me as a pet."

"You don't seem sad."

"I was." Ben let a smile crept on his face, "But an alien princess friend of mine told me to forget about the past and focus on the future."

Donnie was taking what Ben was telling him, "So should I forget about April."

"That's your choice, Donnie." Ben replied, getting off his seat and still looking at him, "You can just tell her how you feel or be happy for her and live for the future." Then he walked to the door and left the room.

Donnie sighed as he glance at the door Ben left, "I hate it when people do that."

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The next day, the sun shined brightly in the sky to signify another morning. The people of New York were happily going through their normal businesses. Meanwhile, beneath the city and in the sewer was the home of the Turtle Ninjas and their sensei/father, Master Splinter. And at the moment they were welcoming their new friend, Ben Tennyson as he and Raph prepared to fight each other.

"You don't have a chance, Ben." Raphael smug at the hero as he stood in a fighting stance.

Raph and Ben stood at the opposite side of the sparring mate as they got ready to fight. The other Ninja Turtles sat at a safe distance with Master Splinter watching. Splinter wouldn't allow any of his sons to fight a human, except Casey. But he wanted to see the power Ben wielded along with his sons. When he had left Ben and the others to meditate last night, he listened to every part of Ben's life story. He was amazed and intrigue at everything he went through and had no doubt that Ben could handle Raphael.

Ben snickered as he began fiddling the watch, "Keep dreaming, Raph. I'm about to kick your butt. It's hero time!" He found the alien he wanted and immediately slammed the face. Immediately, he was engulfed in green light that washed over his body. When the light died, standing in Ben's place was a nine feet tall alien tiger with orange fur and black stripes, a claw coming out of each wrist and no tail.

"RATH!" The alien shouted in anger. There seem to be a small breeze that blew around the room from Ben that touched everyone. Mikey shivered through his teeth before falling unconscious from slight freezing and seeing Rath.

"You think you can beat Rath, Raphael of the Ninja Turtles! Well think again, cause Raph is going kick your butt! Wait….do you guys even have a butt?" As response to Rath question, Donnie and Leo glanced at each other with a questioned look before looking back at the upcoming fight.

"Seriously, Ben. That's your greatest form." Raph snickered, bringing out his Sais and got into a fighting stance, "Then let's rumble." Raph then charged at Rath and began swinging his sais against his opponent. Rath was quick as he dodged each other his attacks, but then Raph sent a round house kick to his stomach. Rath was sent flying backwards, but still stood on the ground.

"So that's how you're playing!" Rath growled at him, "Then you're about to face Rath's greatest hits." Quickly, he dashed straight at Raph and threw an uppercut, "Swing puncher." The blow made contact with Raph's jaw that he was sent flying across the room.

However, that attack wasn't enough to put Raph down as he got back to his feet, "This is gonna be fun." Raph chuckled and charged at Raph. The Ninja Turtle got to Rath fast, jumped forward at him and delivered an air kick to Rath's jaw, "Turtle cannon kick!" Then he delivered multiple butterfly kick to his chest causing Rath to stumble backwards from each kick. He then got back to the ground and performed a sweep kick that sent Rath to the ground.

"Wow! Did he just beat Rath?" Mikey was wide eyed.

"Well actually…." Leo cringed his teeth at the next scene that happened next, "Nope he just got thrown away."

True to Leo's words, Raph was stuck to the wall that it had a few cracks. The Ninja turtle moaned in pain from the sudden attack. He certainly wasn't expecting it as it was too fast for him to react. One moment he was standing triumphantly on Rath, the next he's thrown against a wall.

"WANT TO GO AGAIN!" Rath yelled angrily as he stood.

Raph shook over the dizziness he was feeling and got off the wall. He then picked up his sais from the ground and looked at Rath with a serious look, "Ok. Now I'm mad." He then got back to the fight and began throwing rapid kicks and blows to Rath. He was fast enough to dodge Rath's counter attacks and then swung his sais to scratch Rath's wrist. Then he delivered a swift roundhouse kick to his side that caused him to stumble backwards in pain, "So had enough?" Raph said with a smug look.

"Let me…tell…you." Rath tried to say but was too exhausted. He couldn't stand due to exhaustion and fell to the ground.

"I thought so." Raph put back his Sais and began walking to the unconscious Rath.

Leo and his other brothers were surprise at what happened. Mikey's mouth was wide open as saliva began running down, Donnie was trying to utter a word and Leo just looked dumbfound. But their father was nothing like them. He seems to be watching Raph move to the defeated Rath, like he knew something was going to happen.

Raph then triumphantly put his right foot on Rath's back as he snickered down at Rath, "What's the matter, big guy? Is the tiger finally down or is the big cat…or should I say the kitty cat finally down."

"KITTY!" Rath's right eye snapped up with an angry glare.

The next thing Raph knew was being sent flying through a sparring room wall. His body lay on a large pile of demolished wall and imaginary birds circled his head. Back at the room, his brothers poke their heads at the massive hole and looked down at their defeated brother.

"Wow." They said in unison.

Rath causally walked next to the three brothers and glared at them, "YOU HAVE A PROBLEM WITH THAT!"

"No." The three brothers shook their heads.

"Good!" He said before slapping the Omnitrix symbol. In a flash of light, Rath was back to normal as Ben, "Now what's for breakfast." Ben smirked.

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Back at the surface aka the streets of New York, Casey was following April to a location she found suspicious. Sometime after Ben arrived she had sensed something strange. Like the air around them had changed for some reason, but she couldn't figure it out. She knew it was her mental powers growing and indicating something, but she couldn't figure out the reason. She decided to ignore it until she and Casey were alone before telling him to follow her.

The next night, the two began following April's mental sense. Casey didn't say anything other than he was getting bored of it. He couldn't talk to April because she was focusing on the exact area her mental powers was. April had earlier told him that she just wanted to see what the problem was before calling The Ninja Turtles to handle the problem.

Eventually, April and Casey stopped at the entrance of a warehouse at the coast line. They could hear sounds of electricity sparkling and also saw from the window above them constant green flashes. They knew something was wrong and decided to investigate further…well Casey decided to go anyway and April had to follow, to keep him safe.

"You know we could get captured right?" April asked him, an attempt to convince him.

"Yeah, I know." He replied like it was an average question. He began hiding behind a few pillars and abandoned machines as he advanced forward to the cause of the sounds he and April were hearing. April had no other choice, but to follow his moves. The two soon came upon a giant machine that was hard to describe. They hid behind a big rock and got better view of someone standing above the machine.

"I know you're there?" The person said, not even turning back to look behind them.

Before April and Casey could react, tentacle plant wrapped around them and lift them off the ground. The two tried to fight, but all attempts were futile. April traced the tentacle plants, wrapped around them and saw the source.

"Snakeweed." April snarled at the mutant.

She and Casey then noticed the figure walking towards them.

"Who are you?" Casey demanded.

The figure revealed himself to their view.

"Let me guess, a mutant?" April asked.

"No, I am the most brilliant being in twelve universes. I am Dr. Physcobos." Then he began laughing as he turned his back at them and stared at his machine, "And you, April are my special human guinea pig."

April and Casey glared at the evil physco alien as he began activating his machine. Unknown to Dr. Physcobos, April reached into her pants side pocket and brought out her phone. She then pressed a button, hoping that her friends will get it.

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Back at the lair, the turtle were busy with their various thoughts of fun. Leo was watching his favourite TV show, Raph was leaning against a wall far from his brothers and Mikey and Ben were plying pool table.

"BOOYAH!" Ben exclaimed excitedly.

"How could you beat me ten time?!" Mikey shouted wide eyed.

"Actually it was fifteen, but who's counting?" Ben told him excitedly, "Besides, I kick alien butts like there's no tomorrow."

Mikey slump his shoulders as he pouted with no words to say.

Suddenly, Donnie ran into the room urgently. There was the look of distress on his face that told everyone that something bad is about to happen. They all waited for Donnie to stop panting before he could finally speak.

"April is in trouble!"

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After Donnie told them the urgent signal April sent, the Ninja Turtles and Ben rushed into the rescue. They got out of the sewers, fully ready to the upcoming battle and began leaping from building. Ben was able to keep up with them due to his training by Maddie Fenton and Robin of the Teen Titans. It had gone to the extent that he knew how to fight and could run faster than he used to.

In less than a few minutes, the Ninja Turtles and Ben made it to the warehouse. As they stood at the entrance, the Omnitrix began to beep rapidly which attracted the attention of others.

"What's your with it?" Leo asked in a serious hushed tone.

Ben tried slapping the watch face, but the beeping still continued, "I don't know. You guys go without me, I'll be right behind you."

"Ok. Good luck." Leo replied before motioning for his brothers to follow. They left Ben and began jumping off some large piles of card board papers staying at the front. The two were able to get to the windows and slipped into the building easily. Then by the ceiling, they began walking on the iron holding the entire ceiling. They were careful not to make a sound and soon came upon the large machine that stood below.

"What's that thing?" Donnie asked, surveying the machine to figure out as much as he could.

"Well, I'll tell you when I turn into you." Raph joked.

"Silent!" Leo shushed them in a low tone, "We have to find April and Casey."

Mikey opened his mouth to say something, but a familiar and gruesome voice was heard, "While don't you come and find out!" Quickly, the Turtles jumped off just as a plant tentacle burst at where they once stood. While landing to the ground, they got ready for a fight as they brought out their weapons before they finally landed on the ground to face their opponent, Snakeweed.

Immediately, the Ninja Turtle and Snakeweed engaged in battle. Snakeweed sent much of his rage tendrils and plant claws at the ninjas. But The Ninja Turtles were quick to either jump out of the way or over the attacks. Leo and Raph began heading straight for Snakeweed stomach, while Donnie and Mikey took to the air by jumping of some cardboard and other abandoned machines around. However, it wasn't a total success as Snakeweed caught the two airborne and threw them away, leaving Leo and Raph to fight off the twelve foot mutant plant.

Due to the force of Snakeweed's throw, Donnie was sent crashing to the ground, a few meters from Casey. The black haired teen was tied to a pole by plant vines, securing him tight to the pole. But seeing his friends in danger, Casey dug into his side pocket and brought out a knife, "Good thing I always bring this." He said to himself as he began cutting the vines. He successfully caught the vines off him and it fell to the ground. Casey then glanced at his fallen friend and began running to his aid, however he was interrupted by a scream.

"Someone help!"

"April!" Casey shouted, urgently turning to the machine that held her. He only hoped that Donnie was fine before running to the machine. He got a better view of the machine and saw April trapped inside a green glass cylinder tube holding her. The top of the machine seem to be a giant satellite dish and benath it was a large circular glass glowing. Then lastly was the foundation which was a metal wall with green glowing spheres on them.

He ran as fast as his legs could to save April. But before he could a blue lightening blasts blasted right before him. He turned to the direction of the blast and faced Dr. Physcobos and three mechanical blue humanoid robots.

"You incompetent humans have a mockery of me for far too long." Dr. Phsycobos said out of anger. Then he clicked his claw and the robots charged at Casey. The first one threw a punch at him, but he ducked down and sent his knife straight at the robots's chest. The robot sparked some electricity before it fell down. Casey then stood and moved backwards just as any other robot was throwing rapid and fast blows at him. He tightened his knife and leapt ten meters from the robot and then swiftly threw the knife to the chest, causing the robot to explode entirely.

Having done with the robot, he began panting. However, a robot landed right behind him and pulled out a gun. Casey turned behind him to see the robot and was too frozen to do anything. He knew just one trigger would end his life and if he tried moving the robot might decide to shoot. He then slowly rose up his hands in a surrender position.

But just then, a large Bo staff barged through the back of the robot. The robot looked at Casey chocked before finally deactivating and shutting down.

"Need a little help?" The cause of the robot defeat was Ben.

Casey put down his hand and smiled to his friend, "Yeah, I do. Besides where have you…."

"DUCK!"

"Duck? Where is…."

"No! not that duck. Duck." Ben urgently dashed at Casey and pushed both him and himself to the ground. The two were able to escape just in time for a lightening blast to shock one of them. The two then crawled their way to a mechanical disabled car nearby and looked over to Dr. Physcobos. He was heading towards them with every intention to kill them.

"Ok that must be Dr. Phycobos." Ben said to Casey.

Casey stared at him with a sarcastic look, "Really? I thought he was a dinner crab."

Both boys ducked down just as another lightening blast was sent at them. Ben then began fiddling with the watch, making an alien hologram to pop up. He then twisted the dial, looking for the right alien before finally resting on Brainstorm.

"Time for Dr. Physco to fight his own species." Then he slammed the watched, covering him in green light in the process. His body grew into a large and bulky form before the light died down to reveal his alien form.

However, Dr. Physcobos already got to where they were hiding, "Now you two shall pay the price for…" He stopped his rant just as he came over to see no one, not even Ben or Casey.

"Looking for us."

Doctor Physcobos turned to the source of the voice to find Casey running at him. His shell head opened to reveal his brain and he began firing ligtening blasts at the teen. But Casey was quick as he maneuvered away from the blast, then leapt forward to the air and delivered an air kick at Dr. Physcobos. The mad alien scientist was sent flying backwards. As he landed on the ground, a strange alien with the Omnitrix symbol on his chest snickered. The alien is a slim, but muscular Sasquatch-like alien with black and yellow fur and greens eyes yellow lightening looking horns.

"Bye bye, crab face." Then alien said before throwing a punch down at him.

"What alien is that?" Casey asked as he ran to him.

The alien looked at himself and shrugged, "Beats me. I guess this is another new alien, I wonder what he can do." He clutched his fists and could feel electricity racing from his shoulders to fist, "Cool. I'll call him Shocksquatch."

The sound of April screaming brought them back to the situation. Alarmed, they turned the captured April and stared horrified of what happened. The tube that April was held in pulled her upwards to the circular glass part of the machine. Quickly, they began racing to the machine as much as they could. They leapt upwards to the thing that held April.

"We'll save you, April!" Casey shouted as he ran to the glass. Unfortuantely, he didn't expect making contact with the glass. He then turned Ben, "C'mon use that electricity to blast her out of there!"

Ben nodded as his hands began to charge, "Sure thing." He ran to the glass, fist raised in the air as he got ready to punch it. He threw his fist but rather than breaking it, his hand passes through changing back to his human hand. Ben fell inside as a result and found himself back to normal. He got back to his feet and turned to Casey who stood outside, "Don't worry, I got this!" Ben was shocked and surprise that he was back to normal. The Omnitrix didn't change him back and he definitely didn't change himself back.

But at that moment he shrugs those thoughts as he turned to April. He got the surprise of his time in the new dimension at what he saw. April was floating in the middle of the place, eyes closed and a strange energy surrounding her. Ben ran to her aid, not sure of what to do. The Omnitrix began to beep rapidly as he got closer to her, but Ben ignored it. He reached his hand to her wrist and felt a powerful energy racing through his body. He screamed out in pain and tried to pull out. However, he could not and soon April began to scream in pain.

Outside the machine, The Ninja Turtles were still fighting Snakeweed. Donnie and Mikey were held by Snakeweed tendril and Leo and Raph were fighting off his approaching plant claws. But as two familiar screams occurred, everyone turned to the machine. They could the machine glowing brighter and brighter as cracks appeared on it.

Snakeweed gritted in teeth in anger, "That foolish crab failed." He threw Mikey and Donnie to the ground, "I'll get you for this another day." Then he entered the ground, leaving a huge hole in his place and the Turtles facing the current crisis.

Quickly, they began running to the machine with every speed they got. They successfully jumped on the platform Casey stood.

"What's going on?!" Donnie asked, terrified of what's going on.

"It's Ben and April!" Casey pointed inside the machine, "Something is going on and I don't know. We gotta save them!"

Both Ben and April were still screaming in pain. The energy sourrounding them was growing fast that they were covered in green light. Donnie ran the glass, but couldn't do anything. He tried punching the glass, but to no avail.

Leo calmed himself down to think. He couldn't find anything that they could do and sighed sadly, "We have to leave now!"

"WHAT?!" Everyone exclaimed.

"You heard me! They're about to blow the entire place!"

"But what about April?" Donnie couldn't believe what his brother was saying.

A regretful look crossed Leo's face, "I'm sorry everyone. But we have to." With that said, he ran off. Mikey and Raph took a final sad glance at April and Ben and ran off with their brother. A tear fell down Donnie's cheeks before he ran off with Casey following him.

The Ninja Turtles and Casey ran towards the entrance and got out. They didn't stop running until they were a few meters from the warehouse. With horrified and terrified looks, they looked back at the warehouse as it explode to multiple pieces.

Donnie cried out, "AAAAPRRRRILLLLLLLL!"

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Meanwhile, at Shredder's HQ

In the Shredder's office, he sat behind on his chair as he stared into space. He thought about everything that happened and the boy, Ben Tennyson. At the thought of the brown thirteen year old, he gritted is teeth in anger and let out a growl. After the whole fight, he had woken up from unconsciousness a few hours ago. He was mad, angry and furious that he had the Ninja Turtles, only for them to be free because of Ben.

The sounds of footsteps interrupted him from further thoughts. He looked at his two minions, DogPound and FishFace and grew angrier, " We had the Turtles in our graps! And you two dare interrupt me!"

"You should listen to us if I were you." DogPound smirked. Shredder was slightly surprise at what he heard. Never had DogPound spoken back against him because of fear. Then it occurred to Shredder as he saw DogPound's eyes bloody red.

"Who are you?" Shredder said, keeping a low and threatening voice.

DogPound fell to the ground just as a figure flew out of him. The figure then floated in front of Shredder's desk and revealed himself to him. The figure was a ghost like vampire with a large cape attach to his top back, black hair in the shape of the devil's horns and bloody red eyes.

"I am Vlad Plasmius." The ghost addressed himself and then gestured to Fishface, "And my accomplice is Malware." The machine legs holding Fishface fell to the ground just as Malware came out and revealed himself.

Shredder still stood calmly. He wasn't afraid of them, but rather intrigued. For the past few minutes he hadn't received an alarm of intruders meaning that his defenses were down. But to him it didn't matter. If he showed fear then he knew that this two being will take advantage of their victory on him.

"What do you want?" He asked as he got off his chair.

Malware walked next to Vlad and brought out a circle disk, "Nothing that you have, human. Now listen to this." He then pressed the top and the hologram of Nefarius appeared.

"Hello, Shredder. I am Nefarius and I've heard a lot about you. I heard about you're battle with Ben Tennyson and I believe you and I have a common goal. Now you might be wondering why should help, but think of it this way. I have complete control over you're Headquarters, if you try activating the alarms it would be futile and I have your daughter held. But I'm not that merciless to my new allies, so think of it this way. Join me and we'll get your revenge on both Ben Tennyson, the Ninja Turtles and their Sensei."

The hologram deactivate as soon as it was done. Shredder stared at the two being before him and laugh sinisterly. Vlad let a smirk crept on his face, knowing what the laughter meant.

He brought out his hands for a hand shake, "So is that a deal?"

"Yes." Shredder accepted the handshake, "It's a deal."

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His head hurt. It was like it was throbbing and probably was minor. He felt, exhausted and wanted nothing but to sleep for a long time. However, light began leaking through his eye lids, making him confused. He was too tired to consider a lot of things, but he couldn't ignore the light. It was bright and he could feel relief. So with a moan escaping his mouth his eyes opened.

The first thing Ben came to see was a familiar sight. For a second he thought everything wasn't real, that he was back on his home bed and would wake up to Gwen barging in his room and telling him to get up. He never thought he would miss his cousin, but he found that wrong. There was a lot of things he regretted and wanted to tell his family how much he loved them.

But he wasn't going to do that. Not while he was in another dimension. His eyes were blurry before he finally came to the sight of Mikey sitting by his leg side. Ben noticed tears on his cheeks and wiped it away, not wanting anyone to ask questions.

"Dude, you're awake!" Mikey exclaimed happy. He then turned to the otherside and shouted, "Everyone Ben's awake!" No sooner, the sound of rushing footsteps was heard as Leo, Donnie, Raph and Casey came. There were soon the sounds of happiness and joy as they all grouped around Ben. Leo helped Ben to his feet, while Donnie checked for further injuries. Raph just stood with a smile on his face and Casey gave him a bro hug.

Ben appreciated them and pulled himself from them, "Thanks guys. But where's April."

"Oh, she's dead." Mikey answered with a smile.

"WHAT?!" Everyone, beside Mikey shouted. Then Raph, Donnie and Casey punched Mikey.

"Don't worry I'm alive." A familiar voice said as she came closer. April revealed herself at the doorway with a smile on her face. Then out of joy she ran to Ben and embraced him in a hug, "It's great you're alive. I'm so sorry about what happened." Ben stared at April's face and saw she was worried and concerned about him. Clearly she blamed herself for the incidence.

"Don't blame yourself, April. I was willing to save you and I knew the risks. I'm already facing a physco lunatic powerful villain. I can handle myself." Ben informed her as he stared into her eyes. He could still see that she was feeling better as her eyes met his.

"Thanks." April smiled at him.

Then a curious question pop on to Ben mind, "How did we survive anyway."

Donnie answered, "I'm not sure. We went to the remaining of the building and found you guys deep within. The strange thing is that both you and April were unharmed. So we brought both of you hear and you've been unconscious for three hours. April woke up an hour earlier."

"Ok, guys!" Mikey exclaimed as he rubbed his shoulder, "It's time to…."

"Leave." A voice interrupted in the air. The Turtles and humans were quickly alarmed as they looked around for the source of the voice. Then a flash of blue light occurred at the other side of the room. Everyone turned to the source of the light and saw a man with a blue lab coat, khaki pants and goggles on his fore head.

Leo and his brothers brought out their weapons as they got into fighting stance. Ben recognized the man and walked defensively in front of the brothers, "Don't worry, guys. That's Professor Paradox."

"Hello, Ben." Paradox said with his usual genuine smile, "And I can assume you're Leonardo, Donatello, Raphael and Michangelo. And the two others are Casey Jones and April O' Neil."

"Wow. How did you know?" Mikey asked, amazed at the time walker.

Raph groaned frustrated and he sent a fist to the top of his head, "His a guy that goes through time, Mikey. Keep up."

"Leave young Michelangelo alone. He may seem like the smartest among you, but he will have his days." Paradox then began walking to Ben, "But as much as I would love to hint everyone about their futures It's time for young Ben to leave."

"Leave?" Mikey and Raph said wide eyed, while the others gasped.

Ben sighed sadly as a frown came over his face. He had forgotten to tell them his stay was short, "I'm sorry guys." Ben said as he turned to them, "I totally forgot about it."

"So you're leaving?" April asked.

Ben silently nodded.

Paradox decided to step in from there, "It only seems that way, but not entirely."

"What do you?" Donnie asked.

"You only see this as the last, but it's not the end. Think of this as the beginning. I brought Ben here for a reason; a reason that will be revealed to him when it's time. You all have created a bond to each other, a bond that will last for the rest of your lives. That is if you're capable to handle what is coming."

"And is that?" Leo asked, seeming determined to find out.

Paradox waved his hand at him, "Sorry but I can't tell you. I'm only here to take young Ben to another dimension." He then looked back at Ben, "I'll give you some time to say your goodbyes." Then he walked away from the group.

The moment Paradox left, Ben was embraced by April in a hug. She let go of him just for Leo to give him a brotherly hand shake. Mikey and Ben fist pump each other and Casey and Raph each other at the back. The Turtles gave warming smiles at Ben, showing how grateful they were. April bent down to his level and gave a kiss on his cheek.

"Goodbye, Ben." She whispered to his ear, though everyone still heard it.

"Go kick Nefarius's butt." Raph told him with a bold look.

"We'll be cheering for you." Leo smiled at him.

Ben smiled brightly at them as a tear fell down his cheek, "Thanks guys for everything. As Paradox said; this isn't the end, it's only the beginning." Ben turned back at them and began walking to Paradox. The time walker was waiting with a smile on his face as a blue portal appeared at his side. Ben was about to walk in when Donnie suddenly shouted his name.

"I got you some stuff." Donnie gave him a sword, "This is something I've been walking on. It's the T-blade, made from a few Kraang technologies."

"Thanks, dude." Ben said as he accepted the sword. He then lowered his voice so Donnie could hear, "Remember what I was talking about." Then with a final appreciated smile at his new friends, Ben jumped into the portal.

"Before I go, I have something to say." Paradox said as he turned to the turtles. The smile on his face immediately wipe off as he now stood with a serious look, "Beware the mutant; beware the mutant that walks, lives and seeks destruction." A smile came upon his face, "Goodbye." Then he walked into the portal and it disappeared.

There was a moment of silence before Raph interrupted.

"That guy is strange."

"True to that." Mikey agreed.

Leo however glared at them with a serious look, "But he might be right. We should listen to his warning."

"But still his strange, right?" Mikey asked.

"Yep." Leo smiled.

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Me: Well that ends this part of the series. I hope you all enjoyed the story. If you're wondering if April and Ben have some kind of romance then you're wrong. They're simply friends and that's it. Also, April still has her mental abilities, but it did something to Ben and I won't reveal it. As for Parado's warning, I'm not really sure myself. I heard read about something that will happen in the season two and decided to put that warning. Just note that the warning might or might not happen in season two. Now to the reviews.

REVIEW REPLIES

krikanlo: Thanks for reviewing. This story has its importance and might be revealed in the crossover with The Powerpuff girls. Sorry for the mistakes, it's not easy writing a chapter over 6,000 words.

Ben10 Madness: Great! Glad you liked the chapter.

Garrett4976: As you already know by now, FishFace only made a cameo. I won't make any promise that he might appear in the next crossover.

Guest: I'm very happy you liked it. I hope you found the fight with Rath and Raph very funny.

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Me: Well that's all for this story. The next crossover is with the Powerpuff girls and some other cartoonetwork characters. If you want to know what will happen then check out the sneak peek and review. It might have more characters in it like Johnny Test, though I'm not sure how I'll fit him, but we'll have to see if I succeed. Please review, I would like to know what you think of this chapter. Nice reviews will be accepted, but flames shall be crushed and flamers will be haunted.