Chuck: Season 3, Episode 12

3 - 12: Chuck Versus the American Hero

Chuck has his pick of the best CIA agents for an undercover operation, but he has only one girl in mind for the job, Sarah, who is now involved with Shaw. Casey, Morgan and Awesome team up to help Chuck win her back. Shaw turns himself in to the Ring and is taken into their secret base beneath an old warehouse, where he finds out exactly who killed his wife. Chuck also finds the Ring's base when he contacts Jeff and Lester who were incidentally on a mission to stalk "Sarah's new boyfriend".