President Martinez confronts the traitor in his administration, only to be met with threats of exposing the cover-up of Avias Air 514. Even after testing the loyalty of Isabel and Thomas, Sophia still suspects their subterfuge, so she sends Simon on a fact-finding mission. Her suspicions are confirmed when Thomas unveils a shocking new plan. Meanwhile, on the hunt for Samantha, Sean and Leila battle the mercenaries sent by Dempsey.

Cast: Jason Ritter, Sarah Roemer, Laura Innes, Ian Anthony Dale, Taylor Cole, Lisa Vidal, Bill Smitrovich, Zeljko Ivanek, Blair Underwood, Clifton Collins Jr., Hal Holbrook, Necar Zadegan, Timothy \'TJ\' James Driscoll, Tyler Brooks