Plot
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.
Cast
Jennifer Garner
as Sydney Bristow
Michael Vartan
as Michael Vaughn
Victor Garber
as Jack Bristow
Ron Rifkin
as Arvin Sloane
Carl Lumbly
as Marcus Dixon
Kevin Weisman
as Marshall Flinkman
Rachel Nichols
as Rachel Gibson
Amy Acker
as Kelly Peyton
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Season 5
2005|17 Episodes
The final season kicks off with a shocking revelation and never lets you catch your breath as superspy Sydney Bristow faces one mother of a challenge. Old enemies and favorite guests return for the action-packed series finale.
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