While Chuck and Sarah contemplate the next step for Carmichael Industries, Casey's forbidden love, Gertrude Verbanski (guest star Carrie-Anne Moss), walks back into his life with a questionable mission in South Beach. Meanwhile, Jeff's enhanced intelligence leads he and Lester to suspect that something unusual may be happening at the Buy More.

Cast: Zachary Levi, Yvonne Strahovski, Adam Baldwin, Anthony Molinari, Carrie-Anne Moss