Episode 36 of "Alias"
s02e14 Double Agent
Title: Double Agent
Original Air Date: 02/02/2003 on ABC
Director: Ken Olin
Writer: Roberto Orci, Alex Kurtzman
Guest Stars: Michael Yavnieli (Techie #2), Terry Urdang (Techie #5), Steve Heinze (Ranking Agent), Bru Muller (Negotiator), Olivia d'Abo (Emma Wallace), Ira Heiden (Techie #4), Michael Mastro (Arden Jezek), Constance Brenneman (Christine Phillips), Joel Guggenheim (Techie #3), Ethan Hawke (Lennox), Jeanette Goldstein (Medical Bay Technician)
Plot Outline:
Sydney, Vaughn and Jack must determine whether CIA agent Lennox is who he says he is after his deep cover mission is compromised.