S2, E4: After a radical faction of the Fifth Column murders three Peace Ambassadors, Erica goes on a mission to hunt down their leader, Eli Cohn (recurring guest star ODED FEHR -- Sleeper Cell, Resident Evil: Extinction, The Mummy), a former Mossad agent. Meanwhile, as Jack and other priests around the globe begin to speak out against the Visitors, Anna heads to the Vatican in an effort to convince the leaders of organized religion that the Visitors truly are "of peace." Plus, Erica is assigned a new partner, FBI agent Chris Bolling (recurring guest star JAY KARNES -- The Shield, Sons of Anarchy, Burn Notice, Brothers & Sisters). Recurring guest star JANE BADLER also appears as Diana.