Hey everyone! Are you excited for more Supernatural tonight? I can't believe it's already the mid season finale! Anyway, hope you enjoy this chapter!

The episode opens with a breaking news story. A bank in downtown Milwaukee is being held up. Police squad cars are surrounding the building, paramedics are on the scene, helicopters flying overhead, as this is now the third hour of the hold up.

'What the hell is going on? What's this got to do with the supernatural?' John asked. Sam and Dean looked at each other, confused.

The SWAT team is ready to enter, as we see the front door of the bank open up and we see a man being escorted out of the building by Dean, looking frantically at all of the cameras and police cars outside. He appears to be holding a security guard captive.

'What the...?' Mary questioned but she was interrupted.

'This was an interesting case.' Dean comments, sighing.

'Can I ask why you were holding someone hostage? There was a legitimate reason right?' Mary questioned.

'Obviously. I'm sure you'll find out soon.' Dean replied.

One day earlier, Sam and Dean, disguised as FBI agents, question two employees at the local jewelry shop about the most recent robbery. The robber, Helena, had been an employee for years and the previous night she had cleaned out all the display cases and the safe. Edgar, the night watchman, had caught her in the act, but she had managed to grab his gun and shoot him in the face. She had then gone home and killed herself by throwing a hairdryer in the bathtub. The employees say that there was no motive as to why she would commit suicide.

'Ok, that sounds like something supernatural. What was it?' John asked, but Sam didn't answer.

The cops had got a hold of the security camera before any of the employees could take a look at them. Franny, one of the employees Sam and Dean interview, tries to hit on Dean and he manages to get her phone number.

'Of course. You hit on any pretty girl you come across.' Jo said, with a grin.

Later that night, Sam and Dean pay a visit to Ronald Reznick's house. He's a security guard at the Milwaukee National Trust. About a month ago, a similar incident to the one at the jewelry store occurred at the bank. Same M.O. (long term employee, inside job, never in a million years-type). The guy robs the bank and then goes home and apparently commits suicide. Ron asks to see the boys' IDs. Looking at their badges and still a little suspicious, he invites them in to tell them what really happened that night at the bank.

'Oh dear. I think he's on to you. He seems like one of those conspiracy theory types.' Bobby commented.

Ron starts right off by saying Juan Morales never robbed the bank. He says that the thing he let in the bank wasn't Juan. However, it had his exact physical features.

'Oh right, it's a shapeshifter.' Mary realised.

Ron continues on ranting about how this is the work of a man-droid living in the sewer system, and shows them a magazine cover featuring one (actually an image of a Cyberman from Doctor Who).

'He's ridiculous! That's from Doctor Who!' Jo said.

'You watch Doctor Who?' Dean questioned.

He shows Sam and Dean the copies of the security tapes at the bank and Juan is seen with his eyes flaring into the camera (aka "laser eyes" as Ron calls it).

'Definitely a shapeshifter.' John confirmed.

Trying to steer Ron away from this case, Sam gives Ron a reality check saying there's no such thing as man-droids and that the "laser eyes" is just a camera flare. Dean looks uncomfortable at flat-out lying to Ron, as he's done a lot of the leg-work for them.

'We really should have told him then.' Dean said, with a sigh.

Back in the motel, Sam and Dean manage to grab hold of the tapes at Ron's house and clearly recognize that they are hunting another shape-shifter just like in St. Louis by the creature's retinal reaction to the video. Dean questions Sam about why he threw Ron off the case and Sam's replies that Ron is not a hunter and that he's just a person who stumbled across something real. If he were to go up against the shapeshifter, he'd get himself killed.

'That's true. You need to stop him from getting into anymore trouble.' Mary commented. Sam and Dean looked down, slightly ashamed. Mary frowned.

Looking at a map of the sewer main, Dean points out that there's one more bank on that line that the shapeshifter might target next.

'Clever. I hope you get there on time.' Jo said, looking worried.

At the City Bank of Milwaukee, Sam and Dean disguise themselves as workers from the security system company in order to gain access to the surveillance camera, so they can find the shapeshifter. Several hours pass and still no sign of the shifter until they get a close-up shot of the bank manager and see his eyes flare at the camera. They also happen to capture Ron locking up the front door to the bank with a chain. He then runs into the lobby, pulls out his rifle and orders everyone to the ground.

'Well that was unexpected. Was he the shapeshifter?' John asked. Sam and Dean shook their heads, making John frown.

'So he really is just a madman?' Mary questioned. Sam and Dean nodded.

Sam and Dean walk into the lobby and try to negotiate with Ron. Realizing they aren't FBI agents, Ron orders the two of them to the ground. Finding no other option, Dean tells Ron the truth about this case, that there really is something in this bank but it's not a man-droid.

'A man-droid? Really?' Jo said, laughing.

'We literally have guns to our heads and you're laughing?' Dean said with a smile.

'Well I'm guessing

Dean says they need to find the bank manager because the shapeshifter is in him. Ron allows Dean to come with him, but locks everyone else in the vault.

'At least he believes you.' Bobby commented.

A few minutes later, in the bank manager's office, Dean and Ron burst into the bank manager's office only to find a layer of shed skin behind the desk. Dean explains to Ron that when a shapeshifter changes its form, it sheds the skin and now it could be anybody.

'Oh dear, everything is going to be so much more difficult now.' Jo commented.

Outside the bank, squad cars are surrounding the building, helicopters are flying overhead, and the SWAT team is ready to enter at any minute. The police cut off power to the bank. Sam and Dean are discussing what their next move will be. Since the cops cut the power off, they have no access to the cameras, so there's no way to tell who the shapeshifter is. It could be in the halls or the vault. But either way, they've got to find a way out of the building because Dean is wanted by the cops.

'Oh man, I forgot about that. You guys are in so much trouble.' John said, looking worried.

Dean decides to take a sweep of the building to try and find the shapeshifter. Back in the vault, one of the security guards is apparently having a heart attack. Sam sees no other option but to phone the cops and ask for a paramedic.

'You can't let him die but I hope you were careful.' Mary said.

In one of the offices in the bank, Dean notices a crack in the ceiling. He breaks it open with the coat rack in the room and a dead body falls to the floor. Turning the body over, Dean realizes that the shapeshifter is the African American guy in the vault. Dean rushes back to the vault and he and Sam bring the security guard out to lure the shapeshifter into a trap. However, the shapeshifter manages to escape with Ron running after it. Ron unknowingly falls right into the sniper trap the cops outside have set up and is shot in the back, falling to the ground dead.

'He may have been slightly crazy but he didn't deserve to die.' Sam said looking guilty.

'It wasn't your fault. Don't go blaming yourself.' Jo said. Sam smiled.

Dean escorts the security guard out of the building while Sam goes after the shapeshifter. Sam discovers more shed skin and phones Dean saying it could be anyone again. Dean heads back to the vault to round up all the employees. Outside the building, the FEDS arrive on the scene. After getting everyone back in the vault, the phone rings. Dean picks it up and it's Special Agent Henriksen, who immediately recognizes Dean's voice on the phone.

'So now the FBI are after you? That's just brilliant.' John said, shaking his head.

He demands for him and Sam to come out of the building immediately. He says it's become his job to know about the Winchesters and that he's been tracking the two of them for weeks. He knows about the murders in St. Louis and the slip up in Baltimore, and about the cheap motels and thefts.

'How does he know about that?' Cas asked.

'No idea' Dean replied.

He gives Dean one hour to make a decision or the SWAT team will storm in full force. Inside one of the offices, Sam finds Sheri's (one of the hostages) dead body in the closet. Sam and Dean bring Sheri out of the vault and show her the dead body. When she sees it, she starts screaming and faints. Trying to decide which one is the shape-shifter, they hear glass shatter out front.

'Obviously the one who's alive is surely?' John questioned.

'Not necessarily.' Dean replied.

The SWAT team has entered. As Dean turns around, the shapeshifter, who had been posing as the dead body, grabs him by the throat. The shapeshifter then headbutts him twice and escapes. Dean manages to catch up with it and rams it up against the walls stabbing a silver knife right through its heart.

'Now how the hell did you escape the swat team?' Bobby asked. Dean grinned.

'One of my genius ideas.' Dean replied.

Now Sam and Dean need to find a way out of the bank without being arrested. Two SWAT team members order Sam to freeze in the hall, but he throws them a couple rounds of punches knocking them out. Sam and Dean get into their uniforms and leave the building.

'Clever' John comments.

By the time Agent Henriksen arrives, all that remains are the tied-up SWAT team members. They walk down a back alley to a parking garage a couple blocks down the road where the Impala is parked. As soon as they get in the Impala, Dean admits "We are so screwed". Sam agrees, and they drive off.

'Yep. You are' Cas said with a smile.