Sydney must outwit Sark in order to find a crucial piece of intel. Meanwhile, Jack faces Sydney's mother for the first time in almost 20 years. Will finally meets Vaughn and Sloane is haunted by his wife's death.

Alex Morris, Endre Hules, Ilya Morelle, Janet MacLachlan, Joel Guggenheim, Kavita Patil, Keith Lewis, Mark Colson, Paul Mendoza, Strahil Goodman, Terry O'Quinn, Tom Kiesche, Weston J. Blakesly