Chuck

Season 1, Episode 12

Episode Title: Chuck Versus the Undercover Lover

Air Date: 2008-01-24

Overview:

The episode begins with a flashback to the year 2004, where John Casey is involved with a female Russian named Ilsa, who claims she is a photo journalist. Later, in present day, Ilsa returns with a fiancé, named Victor Federov. Things get complicated when it is revealed that Ilsa is a French spy.