When Buy More computer geek Chuck Bartowski unwittingly downloads a database of government information and deadly fighting skills into his head, he becomes the CIA's most vital secret. This sets Chuck on a path to become a full-fledged spy.
Chuck Bartowski is an average computer geek until files of government secrets are downloaded into his brain. He is soon scouted by the CIA and NSA to act in place of their computer.
As Chuck is beginning to adapt to his new life as a spy, a doctor who could possibly "cure" Chuck is murdered. Chuck then begins a high-speed fight for his life, all while trying to decide which of his two new colleagues might be out to get him. Meanwhile, Chuck's sister Ellie invites Sarah to dinner to meet the family.
Chuck needs the help of Morgan and the Nerd Herd to prove that he is ready to become the store's assistant manager. Sarah and John assign Chuck his first undercover spy mission to foil a terrorism plot.
Chuck's latest mission has him raiding a Malibu mansion to grab a million dollar diamond being used to fund terrorism. Tagging along is an attractive but less-than-trustworthy DEA agent.
After his intuition is wrong while working on a stakeout, Chuck feels morally obligated to make things right, even when both Sarah and Casey refuse to help with Chuck's new mission. Meanwhile, Morgan has to participate in a sales competition that could decide his fate at Buy More.
In this Halloween episode Chuck meets a Federal agent just like him: A computer whiz whose brain is important to national security. However, Chuck soon has a personal dilemma arise when he has to decide whether or not to turn the man over to Sarah and Casey or to help him escape his handlers.
