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imdb logo7.6/10
rotten tomatoes tomato94%
Action & AdventureDrama16+2001 - 20065 SeasonsSeries EndedTags:RevengeSupernatural

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.

Where to Watch Alias

105 Episodes

Where to stream every episode from all 5 seasons of Alias. Filter these episodes by what's available to watch free or on your streaming services using the tabs above.

Season 1

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Season 01, Episode 01 Truth Be Told

S01 E01

Sep 30, 2001
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Truth Be Told Sep 30, 2001 Sydney Bristow discovers that her job as an agent for SD-6, a top-secret division of the CIA, holds some deadly secrets that threaten the security of the free world. In spite of being warned against it, Sydney reveals her secret to her fiancé, Danny, who later on is murdered. Sydney finds that her father, Jack, is also SD-6 and that the group is not part of the CIA, but actually an enemy of the United States. Sydney seeks the aid of the real CIA and is enlisted as a double agent under the command of operations officer Vaughn. Her mission now is to complete her cases at SD-6 while reporting her findings back to the CIA. But when Sydney finds out that her father is also affiliated with the CIA, she begins to question where his true allegiances really lie.

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Season 01, Episode 02 So It Begins

S01 E02

Oct 7, 2001
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So It Begins Oct 7, 2001 Sydney returns to SD-6 and is assigned with Dixon to travel to Moscow to retrieve some stolen files. But when Sydney discovers that she has inadvertently given SD-6 access to a nuclear weapon, she is forced to travel to Cairo and face a deadly foe. Meanwhile, Will begins to question the circumstances surrounding Danny's death, and Sydney learns of her father's involvement in the murder.

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Season 01, Episode 03 Parity

S01 E03

Oct 14, 2001
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Parity Oct 14, 2001 Sydney's life is in mortal danger as she is sent to Madrid to retrieve a 500-year-old sketch that contains a set of numbers and meets up with her deadly nemesis, K-Directorate agent Anna Espinosa. Meanwhile, Will delves deeper into the cause of Danny's death and discovers a very strange anomaly.

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Season 01, Episode 04 A Broken Heart

S01 E04

Oct 21, 2001
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A Broken Heart Oct 21, 2001 Sydney and Dixon go on a dangerous case involving the safety of the United Commerce Organization. Francie confronts Charlie about his secret date with another woman, and Will continues to get closer to the truth about Danny's murder.

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Season 01, Episode 05 Doppelgänger

S01 E05

Oct 28, 2001
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Doppelgänger Oct 28, 2001 Sydney's secret double agent status is jeopardized after she smuggling a biotech engineer into SD-6 from her mission in Berlin. Will meets a woman who confesses that she was having an affair with Danny shortly before his death. Vaughn informs Sydney that her father may be working for a third secret operative agency.

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Season 01, Episode 06 Reckoning

S01 E06

Nov 18, 2001
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Reckoning Nov 18, 2001 Sydney goes undercover in a mental institution to get information from Shepard, a man who has been unconsciously programmed to be a deadly assassin. Meanwhile, after Sydney becomes convinced that her father was responsible for the death of her mother 20 years earlier. Will discovers the true identity of the woman who claimed having an affair with Danny and Francie is relieved to learn that Charlie is not having an affair other woman. Marshall finds the computer worm planted in the SD-6 mainframe by the CIA.

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Season 01, Episode 07 Color-Blind

S01 E07

Nov 25, 2001
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Color-Blind Nov 25, 2001 While helping Shepard escape from the asylum in Bucharest, Sydney discovers the shocking connection he has with her past. Meanwhile, after tracking the computer virus secretly planted by the CIA, Sloane is confronted by Alliance representative Alain Christophe, who suggests that one or more moles may have infiltrated SD-6. Will continues to investigate the woman claiming to be Danny's mistress and Sydney finds out the truth about her father's involvement in her mother's death 20 years earlier.

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Season 2

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Season 02, Episode 01 The Enemy Walks In

S02 E01

Sep 29, 2002
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The Enemy Walks In Sep 29, 2002 Sydney finds herself face-to-face with her mother, whose intentions for her daughter are made chillingly clear. Meanwhile Sydney continues her search for Vaughn, not knowing if he is dead or alive after being swept away by a wall of water in Taipei. Will's life is forever changed when he learns the truth about SD-6 and Sydney's life as a double agent. Dixon must decide whether or not to inform Sloane of Sydney's suspicious activities.

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Season 02, Episode 02 Trust Me

S02 E02

Oct 6, 2002
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Trust Me Oct 6, 2002 Sydney must decide whether her mother's goodwill gesture was sincere or an attempt to kill her. Will witnesses Francie discussing her restaurant plans with a man whose affiliations are questionable, and Sloane is made a full partner in the malevolent Alliance of Twelve.

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Season 02, Episode 03 Cipher

S02 E03

Oct 13, 2002
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Cipher Oct 13, 2002 Sydney must outwit Sark in order to find a crucial piece of intel. Meanwhile, Jack faces Sydney's mother for the first time in almost 20 years. Will finally meets Vaughn and Sloane is haunted by his wife's death.

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Season 02, Episode 04 Dead Drop

S02 E04

Oct 20, 2002
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Dead Drop Oct 20, 2002 Sydney's dealings with her mother lead Jack to take drastic measures to ensure his daughter's safety. Meanwhile Will is confronted by a mysterious woman about resurrecting his story on SD-6.

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Season 02, Episode 05 The Indicator

S02 E05

Nov 3, 2002
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The Indicator Nov 3, 2002 Sydney discovers a terrifying secret when she's sent on a case to track down a new generation of weapons. Meanwhile, Vaughn suspects Jack of setting up Sydney's mother to take a fall. Sloane tells Jack the truth about Emily's death.

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Season 02, Episode 06 Salvation

S02 E06

Nov 10, 2002
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Salvation Nov 10, 2002 Sydney's trust in her father begins to fade. Meanwhile, Sydney and Vaughn may have been exposed to a deadly virus while in Taipei; Sloane haunted by Emily's death begins to unravel. Vaughn enlists Will to help research a case.

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Season 02, Episode 07 The Counteragent

S02 E07

Nov 17, 2002
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The Counteragent Nov 17, 2002 Sydney races to find a cure for Vaughn, but in order to find the antidote, Sydney must make a deal with Sark that could endanger Sloane's life. Meanwhile, Will continues his research for Vaughn and discovers some disturbing inconsistencies involving 20-year-old standardized IQ tests.

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