Season
- Season 5 2005-09-29
- Season 4 2005-01-05
- Season 3 2003-09-28
- Season 2 2002-09-29
- Season 1 2001-09-30
- Season 0
Episode
- Episode 1: The Enemy Walks In
- Episode 2: Trust Me
- Episode 3: Cipher
- Episode 4: Dead Drop
- Episode 5: The Indicator
- Episode 6: Salvation
- Episode 7: The Counteragent
- Episode 8: Passage (1)
- Episode 9: Passage (2)
- Episode 10: The Abduction
- Episode 11: A Higher Echelon
- Episode 12: The Getaway
- Episode 13: Phase One
- Episode 14: Double Agent
- Episode 15: A Free Agent
- Episode 16: Firebomb
- Episode 17: A Dark Turn
- Episode 18: Truth Takes Time
- Episode 19: Endgame
- Episode 20: Countdown
- Episode 21: Second Double
- Episode 22: The Telling
Alias Season 2 The Counteragent
Sydney Bristow, an agent who has been tricked to believe she is working for the U.S. government, is actually working for a criminal organization named the Alliance of Twelve. Upon learning this, Sydney becomes a double agent for the real CIA.
