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.

• Jennifer Garner
• Michael Vartan
• Victor Garber
• Ron Rifkin
• Carl Lumbly
• Kevin Weisman
• Rachel Nichols
• Amy Acker