Martinez and his Chief of Staff order their intelligence departments to determine the nature of Thomas' message and who it was sent to. Meanwhile, Thomas launches a surprise attack, Alaskan Senator Catherine Lewis threatens to go on national television to alert the public to the enemy among them, and Sean and Leila get a fresh lead on Samantha's location.
Casts:
Jason Ritter, Sarah Roemer, Laura Innes, Blair Underwood, Ian Anthony Dale, Scott Patterson, Taylor Cole, Lisa Vidal, Bill Smitrovich, Clifton Collins Jr., Zeljko Ivanek