Episode 1 : Pilot
When Chuck Bartowski (series star Zachary Levi) opens an e-mail subliminally encoded with government secrets, he unwittingly downloads an entire server of sensitive data into his brain. Now, the fate of the world lies in the unlikely hands of a guy who works at a Buy More Electronics store with his best buddy, Morgan Grimes (series star Joshua Gomez), and who lives with his ever-supportive sister, Ellie (series star Sarah Lancaster). Instead of fighting computer viruses, Chuck must now confront assassins and international terrorists. With the government's most precious secrets in Chuck's head, Major John Casey (series star Adam Baldwin) of the National Security Agency assumes the responsibility of protecting him. His partner is the CIA's top agent -- and Chuck's first date in years -- Sarah Walker (series star Yvonne Strahovski). They'll try to keep him safe when he trades his pocket protector for a bulletproof vest.
Episode 2 : Chuck Versus the Helicopter
Chuck gets caught between a Casey/Sarah feud when a new danger arrives at Buy More.
Episode 3 : Chuck Versus the Tango
Chuck is finding out that living two separate lives is not going to be easy.
Episode 4 : Chuck Versus the Wookiee
Chuck takes on an unusual task when Sarah's hot colleague from the CIA requests help with a mission.
Episode 5 : Chuck Versus the Sizzling Shrimp
Chuck faces his first moral dilemma as a spy. When agents Sarah and Casey refuse to aid an unauthorized mission by a top Chinese spy taking place in Chinatown, Chuck faces the tough decision to either go against the U.S. government and his friends or do what he believes is right. Meanwhile, Morgan is caught in a dilemma of his own when Buy More forces him into a sales competition that could cost him his job.
Episode 6 : Chuck Versus the Sandworm
When Chuck meets a fellow government agent with a double life, a gadget whiz whose brain makes him a national security asset and a dangerous liability -- much like Chuck -- he must decide whether to turn the agent in to Sarah and Casey or help him escape.
Episode 7 : Chuck Versus the Alma Mater
When Chuck finds out that his former professor is a government operative who is being hunted because of a sensitive top-secret file, he returns to Stanford University, the institution from which he was expelled.
Episode 8 : Chuck Versus the Truth
Chuck battles with his real love life and "cover" love life when he meets a very pretty girl named Lou (recurring guest star Rachel Bilson), who seems interested in the real Chuck.
Episode 9 : Chuck Versus the Imported Hard Salami
When Chuck starts dating Lou (recurring guest star Rachel Bilson), a sandwich maker, and things seem to be going really well, the situation incites some jealousy from Chuck's "ex-girlfriend" Sarah, who discovers that her feelings may not have been just part a cover story.
Episode 10 : Chuck Versus the Nemesis
At Thanksgiving, Bryce (recurring guest star Matthew Bomer) returns, after being assumed dead.
Episode 11 : Chuck Versus the Crown Vic
Still licking his wounds after realizing Sarah still has feelings for Bryce (recurring guest star Matthew Bomer - "Traveler"), Chuck must assume the cover of being Sarah?s husband on a mission to foil a politically connected counterfeiter and yachtsman.
Episode 12 : Chuck Versus the Undercover Lover
Chuck discovers that several Russian arms dealers are secretly meeting in Los Angeles.
Episode 13 : Chuck Versus the Marlin
Captain Awesome (recurring guest star Ryan McPartlin) asks Chuck if he can have Ellie's hand in marriage, and then insists that Chuck hold on to the ring until the proposal is planned.