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.