A/U story. What if Chuck and Sarah were a couple from the very beginning? How would that change the evolution of the stories? Here's my take on answering those questions. This story is, internally, broken up into arcs which (sort of, mostly) conform to episodes of the show. There's a rough table of contents on my profile page. Reading them in order is suggested.

Chuck finds out something he shouldn't, in order to save others he must run, but he never imagined where he'd end up...

When the past comes back while Callen's trying to find out who he is, he has to make a decision keep looking or work on what he has here and now. Will the team step up and help out when he needs help?

AU - What if Chuck was a double agent? What if he led a team of agents all aimed to take down Fulcrum. Can he manage to take them down before they collapse the US Intelligence agencies from within? Would Chuck still fall in love with Sarah, knowing he shouldn't? Would Sarah still fall in love with him? Can Casey put up with all the lady feelings? Crossover with Heart of Stone.

Photojournalist Sarah Walker has spent her acclaimed career walking the tightrope of societal norms and a yearning for adventure. When her duty to making appearances for her career puts her in Bartowski Electrics CEO Chuck Bartowski's path, their very different worlds collide. Will she discover there is more adventure to him than meets the eye? Charah AU based on Rear Window

Chuck and Sarah were meant to be, sometimes people get in their own way, but the fates will always win.

Sarah Walker's modeling career is in its budding stages when the CIA recruits her into their ranks at 16. 10 years later, she's balancing being a world famous supermodel and actress with spying for the CIA. Her existence is fraught with danger and she's constantly on the go, until she meets a disarmingly sincere man on the beach...and her life is changed forever.

Kensi runs into firefighter, Lieutenant Deeks, during a case. Romance, flirting, and hot firefighting ensue. AU Densi fic with some team appearances. Based on a prompt from my Tumblr.

This is set shortly after season 5 ended. Chuck is once again the Intersect and has a new team, however a dark sinister plot is also being hatched that may threaten everything Chuck holds dear. Many faces, some old, some new will show up, but who can be trusted? And what about Sarah? Plus plenty of surprises along the way. Dedicated to the best show, we miss you Chuck!

Chuck Bartowski finds himself on an exo-planet and has to face a new life there. A beautiful blonde he meets will help, just as he will help her. This planetary romance will be a very different Charah AU.

Sarah Walker is a successful author of a series of spy novels. When she agrees to add a love interest into the next book, she starts to think about her own situation. AU Charah.

Chuck and Morgan are co-hosts of a locally popular streaming channel in which they discuss all things metal while playing video games. Their lives are uprooted when their demo guy hands them THE demo of the ages—a band called Critical Hellfire, fronted by singer and bassist Sarah Walker. AU Charah.

Chuck is 2.0, trained and relocated to Rome. Charles Carmichael is leading a life of adventure and excitement, with a special woman in his life. FYI, in this tale Chuck is a flawed person, not a Saint. He is doing his best, making mistakes along the way. The one thing he knows is that he must become a real spy. If you read the Charina version, this is the same story 'til Chapter 16

A little journey highlighting various moments since Deeks joined the team. Originally posted to wikiDeeks.

Deeks sees Kensi's paperwork on the nurses' desk. Arrival Time: 3:35AM. He's confounded. He kissed that head good night exactly seven hours ago and has no idea how she got from there to here. Seven lost hours that clearly put her squarely in harm's way. Densi. PG. Set in Season 13.

Kensi Blye is using Marty Deeks as her personal punching bag. It's just easier than using words to communicate some things. But it is getting old, very old. This is my first original story, a one shot. Not Densi, yet.

CIA agent Sarah Walker is sent to Burbank to retrieve the stolen Intersect program and terminate Chuck Bartowski, its recipient. Her mission proves to be the most difficult of her life, unsettling all she knows, pitting her against her own past and her own profession, demanding nothing less than a change of heart. — But how can a woman with no heart change her heart?

What if Carina Miller hadn't been what she seemed, what if she took an interest in Chuck, what if Chuck wasn't railroaded by the NSA and CIA and actually had someone who gave a s#!t about him.

What if the download Chuck received from Bryce was different and what if the circumstances in which he watched it were different too? AU Charah story.

AU Densi story. Sequel to Endless Summer by RPO-97. Kensi has just graduated high school and Marty has finished his first year of law school. They meet on the beach, and eventually start a friendship. Where will it lead?

Based on "First Date"! Done mostly in Sarah's POV! Canon and AU!

Their friendship has been building over 20 years. Best friends doesn't even describe who they are to each other. Through every major and minor life event they've been there for one another, but what happens when that's not enough anymore.

Ten years have passed. Chuck lives in the shadow of his former life, wildly successful but alone. Until Ellie hears from Sarah. She needs Chuck's help. The path back to happiness is long and riddled with potholes. But love is a miracle, perhaps the greatest of all. Once they understand this, healing is possible.

What did Chuck think was going to happen when he showed up at Sarah's door with a white jacket, rose, and bottle of wine? Here is my vision of what could have happened

After Chuck leaves Sarah in Prague, Sarah decides change in her life is necessary.

The Piranha shocks Washington D.C. by hacking into all its most important entities, and Washington responds by creating a task force to catch him and putting him to work. This Chuck AU story leverages only some of the canon framework, with very different character backstories and NO INTERSECT...but there is plenty of action, adventure, humor, and of course lots of romance!

Based on a prompt which requested Deeks being recognized while undercover. Set in the early seasons. Team fic with the focus on Deeks.

At the end of Season 2, Sarah leads Chuck to Casey to be tranqed and sent to the Bunker. Something happens on the way and Chuck ends up on his own. Bryce Larkin becomes the intersect and joins Casey/Sarah. Do Chuck/Sarah have a chance to come back to each other. Adventures arise.

A guy finds a diary and looks for the girl.

Sarah prides herself on being the best of the best—Graham's Wild-Card Enforcer, the Ice Queen, and agent extraordinaire. But when she's assigned to protect an innocent curly-haired nerd, a man unlike any she's ever met, she ends up becoming her own worst enemy. Things take a turn for the worse, and she's forced to make choices that could alter her life forever.

It's November 2003, and Agent Sarah Walker has been summoned to a meeting with CIA Director Graham that she hopes will jump-start the next stage of her career. But what he actually has in mind is a mission that will lead her to question everything she thought she knew about herself, and compel her to choose between fulfilling her duty and following her heart.