The action explodes in the phenomenal fourth season when Sydney leaves the CIA to join a powerful new Black Ops unit, having no idea of the reunion in store for her.
4 - 1Authorized Personnel Only (1) Jan. 05, 2005
4 - 2Authorized Personnel Only (2) Jan. 05, 2005
4 - 3The Awful Truth Jan. 12, 2005
4 - 4Ice Jan. 19, 2005
4 - 5Welcome To Liberty Village Jan. 26, 2005
4 - 6Nocturne Feb. 09, 2005
4 - 7Détente Feb. 16, 2005
4 - 8Echoes Feb. 23, 2005
4 - 9A Man of His Word Mar. 02, 2005
4 - 10The Index Mar. 09, 2005
4 - 11The Road Home Mar. 16, 2005
4 - 12The Orphan Mar. 23, 2005
4 - 13Tuesday Mar. 30, 2005
4 - 14Nightingale Apr. 06, 2005
4 - 15Pandora Apr. 13, 2005
4 - 16Another Mister Sloane Apr. 20, 2005
4 - 17A Clean Conscience Apr. 27, 2005
4 - 18Mirage May. 04, 2005
4 - 19In Dreams... May. 11, 2005
4 - 20The Descent May. 18, 2005
4 - 21Search and Rescue May. 18, 2005
4 - 22Before the Flood May. 25, 2005