Zachary Levi stars as the title character Chuck Bartowski on NBC's amazing dramedy, Chuck. Chuck is a nerdy guy that ended up working at the Buy More nerd herd desk after he was kicked out college at Stanford.
Chuck's former college roommate, Bryce, ended up sending him an encrypted email which contained a program known as the Intersect. Once the Intersect was in Chuck's brain, he became extremely useful to both the good guys (the CIA / NSA) and the bad guys, Fulcrum.
Both the CIA and NSA sent agents, Casey and Sarah to protect him and now Chuck has to lead a double life as both a Buy More employee and a secret agent in order to keep his family from finding out.
Sarah: Hey, did you get a good look at him?
Casey: I didn't have to. I know him.
Chuck: Guys, hey, I just flashed on that dude. And it's crazy, it's actually kind of a small world funny story.
Casey: Save it. His name is Ty Bennett. He was my sensei. He taught me everything I know.
Chuck: I'm not a salesman. I'm actually part of the nerd herd.
Customer: You must be so proud of yourself.
Chuck: I wouldn't go so far as to say proud