From ABC Medianet- WILL IS ARRESTED FOR ESPIONAGE, SYDNEY QUESTIONS HER MOTHER'S DECEPTION, AND IRINA REVEALS HER TRUE MOTIVATION, ON THE TWO-HOUR SEASON FINALE OF ABC'S "ALIAS" ABC's electrifying spy drama, "Alias," wraps up an exciting season with a special, two-part Season Finale. In part one of the two-hour broadcast - "Second Double" - Sydney begins to question Will's identity when he's arrested for espionage, under suspicion of being a double. Meanwhile Sark and Irina plot to recover the Rambaldi heart, and Sloane makes Jack a business proposal. In part two -- "The Telling" -- Sydney finally confronts her mother, who reveals her true motivation. Sloane, for his part, begins to execute his new grand plan, Will struggles to figure out who's behind his set-up, and Marshall finds love. "Alias'" Season Finale airs SUNDAY, MAY 4 (9:00- 11:00 p.m., ET), on the ABC Television Network. "Alias" stars Jennifer Garner as Sydney Bristow, Victor Garber as Jack Bristow, Ron Rifkin as Arvin Sloane, Michael Vartan as Michael Vaughn, Lena Olin as Irina Derevko, Bradley Cooper as Will Tippin, Merrin Dungey as Francie Calfo, Carl Lumbly as Marcus Dixon, Kevin Weisman as Marshall Flinkman and David Anders as Mr. Sark. "Second Double" guest-stars Terry O'Quinn as Kendall, Michael Canavan as Special Agent McCain, Joel Swetow as Jens, Robert Joy as Hans Jurgen, J.P. Romano as French guard no. 1 and Kristopher Logan as Garth. The story for "Second Double" was by Breen Frazier and the teleplay by Crystal Nix Hines. Ken Olin directed. "The Telling" guest-stars Terry O'Quinn as Kendall, Amanda Foreman as Carrie, Jonathan Banks as Brandon, Greg Grunberg as Weiss, Kevin Bowens as Alpha Team leader, Jon Dixon as CIA agent no. 1, Paul Keeley as police officer no. 1 and Michael Yama as Chinese agent. "The Telling" was written and directed by series creator J.J. Abrams.