Chuck Versus the Family Volkoff is the 20th episode of the 4th season of Chuck and Dalton, Hamilton and Cohan will return in their recurring roles in this episode. The film will air on April 11, 2011.
Plot Summery: A bad day gets worse when Sarah Walker throws Chuck Bartowski a surprising relationship curveball as the CIA orders Vivian Volkoff (Lauren Cohan) assassinated. In order to prove Vivian's innocence, Chuck must put his trust in a dangerous ally – Vivian's father Alexei (Timothy Dalton). Meanwhile, Ellie Bartowski-Woodcomb suspects that her mother Mary (Linda Hamilton) is interfering with the search into her father Stephen's past.