David suspects a traitor inside the complex helping the insurgents, and orders Pam to question the technicians. Meanwhile, Ethan is determined to stop more terrorist attacks like the one that put Ben in the hospital.
Quest roles:
Reed Diamond(Harold Balinger), Chad Krowchuk(Tim Bell), Greta Lee(Ruby), Siobhan Fallon Hogan(Arlene Moran), Barclay Hope(Brad Fisher), Sarah Jeffery(Amy), Hope Davis(Megan Fisher), Scott Michael Campbell(Wayne Johnson), Teryl Rothery(Henrietta), Giacomo Baessato(Eric (uncredited)), Toby Levins(Alan), Ian Tracey(Franklin Dobbs), Nicholas Carella(Reggie Hudson), Robin Nielsen(Husband), Tanya Hubbard(Wife), Craig March(Workman #1), Dakota Guppy(Little Girl / Daughter), Glen Gordon(Finn (uncredited)), Donny Lucas(True Believer #2), Roger Haskett(Doctor Carol), Janet Glassford(True Believer), Tom MacNeill(Teacher (uncredited)), Kate Crutchlow(Elizabeth (uncredited)), Ron Wear(Abby (uncredited))