Chuck is a series that follows the misadventures of a computer techno-geek who accidentally downloads the entire CIA/NSA secret database into his brain and must be watched over by government agents until that data can be retrieved. The series debuted in 2008 and was one of the series hit hardest by the writers’ strike which saw the series air only 13 episodes. Then NBC decided to shelve it until 2009 with a full season ordered.
Chuck Bartowski (Zachary Levi) is a friendly, restless Nerd Herd associate at Buy More who has lots of video games and computer techno-geek knowledge but who's directionless and just getting by in life. One night he receives an e-mail from his old college friend. When he clicks on it, he activates a program named the Intersect that downloads all of America's highly classified security info into his brain.
The government computer and Chuck’s computer are destroyed, which makes the information in Chuck’s mind unique. To protect the Intersect, Chuck has CIA agent Sarah Walker (Yvonne Strahovski) and NSA agent Major John Casey (Adam Baldwin) babysitting him until they can get the info out of his brain. Chuck is also living with his sister Ellie (Sarah Lancaster) and her fiancé Devon (Ryan McPartlin) who is a mountain-climbing, sky-diving doctor who Chuck has nicknamed “Captain Awesome” because everything he does is just awesome. Chuck is living with Ellie and Awesome so that makes trying to be a spy harder for Chuck and funnier for the viewer.
The first season has Chuck leading a double life working at the Buy More, while also helping agents Walker and Casey on missions — when Chuck sees people in the database, the Intersect flashes and gives him that information. To complicate matters, Chuck is falling for Sarah, who also is having feelings for Chuck but won't get involved with him since they are co-workers. While Sarah likes Chuck and is willing to work with him, there’s also Agent Casey who is a gruff, no-nonsense, military type who would just as soon shoot Chuck as protect him. As the series progresses Casey starts to warm up to Chuck, but would still shoot him — just not as quickly.
When the series returns for the second season, Intersect 2.0 is almost ready which means Chuck is no longer necessary. Casey has orders to kill Chuck once the new Intersect is proven to work. Luckily for Chuck that’s not the case and he’s still very much necessary. The season builds upon the first season, fleshing out Sarah and Casey’s back story, seeing Chuck trying to become a spy, delicately balancing the work/friendship relationship between Chuck and Sarah, Chuck still trying to balance working for the Buy More and being a spy, and more.