TV series
She can be anyone.
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.
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Checked Jul 22, 2026
Alias is available to stream on Disney+ in United States. You can also rent or buy it from Google Play, Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
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.
Choose an episode, then use the watch options above for the show.
Episode 1
Sydney quits the CIA and joins a Black Ops unit called "Authorized Personnel Only" alongside Dixon, Jack, Vaughn and... Sloane. Meanwhile, the truth Sydney found out in Wittenberg endangers her relationship with Jack, and eventually she reveals the awful truth to Vaughn.
Directed by Ken OlinWritten by J.J. Abrams, Jeff MelvoinGuest stars Kane Hodder, Jeff Chase, Angela Bassett, Rob Benedict, Rick Yune, Karl Hamann
Episode 2
Sydney unwillingly teams up with her father to hunt down a modern-day samurai. Meanwhile, Nadia doesn't want to go back to the spy business, but is forced to when Sydney's life is jeopardized. Sydney finds out the reason behind Jack's misdeed and Nadia makes an unsettling promise.
Directed by Ken OlinWritten by J.J. Abrams, Jeff MelvoinGuest stars Mark Ryan, Rick Yune, Jay Harik, JR Reed, Clive Pearson, Marco Matronelli
Episode 3
Sydney must seduce a murderous arms dealer in order to track down a stolen NSA code-breaker. Meanwhile, Vaughn fears for Weiss's life, and Sydney and Jack argue about telling Nadia the truth about her mother.
Directed by Lawrence TrillingWritten by Jesse AlexanderGuest stars Dayo Ade, Yuri Lowenthal, Jonathan Dixon, Peter O'Meara, Sharon Ferguson
Episode 4
Sydney and Vaughn go undercover to track down a deadly new bio-weapon. Meanwhile, Sydney is concerned about Vaughn not having yet put Lauren behind, and Nadia turns to a Jack to find out the truth about her mother.
Directed by Jeffrey BellWritten by Jeffrey BellGuest stars Kelly Macdonald, Richard Speight Jr., Mark Aiken, Daniel Kash, Michael McKay
Episode 5
Sydney and Vaughn go undercover as a married couple so as to find a weapon that could bring back the Dark Ages. However, the neighborhood they've infiltrated is not as charming as it seems.
Directed by Kevin HooksWritten by Drew GoddardGuest stars Rick Overton, Larry Sullivan, Alla Korot, Margaret Easley, Jim Pirri, Bob Jesser, Katherine Disque, Jamison Jones
Episode 6
After being infected with a hallucinogen, Sydney starts to lose touch with reality. Vaughn and Jack must rush to find an antidote before Sydney puts her life - and others next to her - into danger.
Directed by Lawrence TrillingWritten by Jeff PinknerGuest stars Michael A. Goorjian, Will Schaub, Julie Ann Emery, Craig Ricci Shaynak, Nick Jaine, Michael Nagy, Julia Levy-Boeken, Sunah Bilsted
Episode 7
While Sydney and Nadia argue about Nadia's acceptance of Sloane's fatherly concerns, Sloane worries about Nadia's well-being when she and Sydney go undercover as wealthy, irresponsible young heiresses to uncover the whereabouts of a deadly chemical.
Directed by Craig ZiskWritten by Monica Owusu-Breen, Alison SchapkerGuest stars Alex Veadov, Sam Ayers, Boris Lee Krutonog, Aengus James, Michael Kagan, Olga Vilner
Episode 8
Sloane temporarily steps down as Director of his Task Force and gives Jack full authority over the next assignment, which involves Anna Espinosa, Sydney's old foe. However, Anna turns the tables on APO when she captures Nadia and forces Sydney to do her biddings. Sydney tells Nadia about the Rambaldi's prophecy which dictates that two sisters will fight and only one will survive. Meanwhile, Vaughn visits Sark and tries to trick him into helping them to catch Anna. In the end, one of the sisters is mortally wounded by Anna.
Directed by Dan AttiasWritten by Josh Appelbaum, André NemecGuest stars David Anders, Gina Torres, Darrel Guilbeau, Nick Jaine, Sebastian Roché, William Morgan Sheppard, Sven Holmberg, Scott Vinci
Episode 9
While Nadia is in a coma, Sark is taken into APO to help them infiltrate Cadmus Revolutionary Front and retrieve the bomb, but in return he demands to see Lauren's corpse and that Vaughn opens her coffin for him. Nadia may be the only person with the intel they need to intercept the bomb, so Jack is forced to prematurely wake Nadia from her coma, endangering her life, which doesn't please Sloane when he finds out.
Directed by Marita GrabiakWritten by Breen FrazierGuest stars David Anders, Gina Torres, Anthony Cistaro, Nick Jaine, Ilia Volok
Episode 10
Dixon enlists Sydney to help him prove that Sloane is double-crossing the CIA and using APO to steal the Blackwell Index, a master blackmail list, and to reconstruct the Alliance. Sydney makes her way into Sloane's house so as to copy the encryption key from his secure phone and crack his calls. When Nadia finds her, she becomes disappointed in her sister. Meanwhile, Vaughn discovers something disturbing about his father when he visits his comatose uncle.
Directed by Lawrence TrillingWritten by J.R. Orci, Alison SchapkerGuest stars Michael Des Barres, Lynne Moody, Angela Bassett, Kevin Scott Allen, Osman Soykut, Daniel Kaemon, Adam Logan
Episode 11
Sydney must protect the life of a civilian, whom she unintentionally put in danger. Meanwhile, Jack plans a visit with an old friend, and Vaughn uncovers more disturbing secrets about his father.
Directed by Maryann BrandonWritten by Josh Appelbaum, Monica Owusu-Breen, Alison Schapker, André NemecGuest stars Jason Segel, Victor Alfieri, Blair Wingo, Corey Stoll, Cullen Douglas, Cliff DeYoung, Alan Toy, John Hans Tester
Episode 12
Nadia puts her own life - as well Sydney's and Weiss's - in danger after failing to unveil her past through a dangerous criminal. Meanwhile, Vaughn finds a person who is somehow connected to his father and Nadia as well.
Directed by Ken OlinWritten by Monica Owusu-Breen, Jeffrey BellGuest stars Kevin Alejandro, Adrian R'Mante, Sonia Braga, José Zúñiga, Alejandro Furth, Ivan Saric, Gisselle Castellanos, Alexander Kuznetsov
Episode 13
When a mission goes wrong, Sydney's is placed in danger and Marshall is the only one who can save her. Meanwhile, Dixon is exposed to a deadly pathogen released inside APO.
Directed by Frederick E. O. ToyeWritten by Drew Goddard, Breen FrazierGuest stars Amanda Foreman, Diego Wallraff, Ulrich Thomsen, Gina Morelli, Raoul N. Rizik, Richard Willgrubs
Episode 14
Sydney and Vaughn risk their lives trying to find out the truth about Vaughn's father. Finally, we find out why Jack and Sloane seem to be conspiring together against Sydney and Vaughn.
Directed by Lawrence TrillingWritten by Breen FrazierGuest stars Elya Baskin, Robin Sachs, Michael Kenneth Williams, Zena Leigh Logan, Andrew Kirsanov, Marat Oyvetsky
Episode 15
In an attempt to talk to Sydney, Katya Derevko deliberately poisons herself and is temporally taken out from her cell. Once Nadia tells her sister about this, Sydney visits her aunt to tell her to stay away from Nadia. However, Katya unsettles Sydney by telling her that someone framed her mother as a means of getting her killed. Sydney sets off in search of the truth behind this story. Meanwhile, Vaughn becomes a rogue agent by getting involved with the people who might know his father's whereabouts. In the end, he and Sydney find out that the man behind these two plots is no other than A. Sloane. However, things are not exactly as they seem to be.
Directed by Kevin HooksWritten by Jeff Pinkner, J.R. OrciGuest stars Izabella Scorupco, Joel Grey, Isabella Rossellini, Michael Ensign, Michael Kenneth Williams, Nickolai Stoilov, Eamon Hunt, Nick Hoffa
Episode 16
Sydney and Vaughn tell Jack about Sloane's alleged involvement in Vaughn's search for his father and Irina's contract on Sydney's life. After cornering Sloane, they both conclude that someone is framing him. The APO team set a trap to catch the fake A. Sloane, but they fail. Once they realize what "Arvin Clone" is after, Sloane suggests he should step down temporarily. However, Sydney reluctantly convinces him to stay on the case, since he may the only person able to anticipate "Arvin Clone's" next move. But Nadia fears that this pursuit may revive her father's past obsession – Rambaldi.
Directed by Greg YaitanesWritten by Luke McMullenGuest stars Paul Ben-Victor, Joel Grey, Rocco Sisto, Michelle Forbes, Michael Kenneth Williams, Tony Colitti
Episode 17
Nadia's former caretaker, Sophia, has been severely beaten. She contacts Nadia and asks to meet her. Sloane is told by Sophia that she was beaten up, because someone is trying to track Nadia down, so he and Jack decide to tell their daughters the truth – Elena Derevko, the third and the most cruelest of the Derevko sisters, has been surveilling both Sydney and Nadia for a decade. Meanwhile, Jack's doctor advises him to tell Sydney about his illness.
Directed by Lawrence TrillingWritten by J.R. OrciGuest stars Michael McKean, Sonia Braga, Nestor Serrano, Vladimir Mashkov, Osgood Perkins, Taso Papadakis, Paul McCarthy-Boyington, Ariel Felix
Episode 18
Jack's illness has caused him to hallucinate about a cure. Sydney must recreate the time when Jack was working for the CIA and hid the only man who might be able to help him now. For this, Sydney must play her own mother. Meanwhile, Sophia moves in with Sydney and Nadia.
Directed by Lawrence Trilling, Brad TurnerWritten by J.R. Orci, Steven KaneGuest stars Michael McKean, Sonia Braga, Vladimir Mashkov, Osgood Perkins, Taso Papadakis, Hans Schoeber, Ori Pfeffer, Bee-Be Smith
Episode 19
The team captures the Sloane Imposter and questions him to find a rare Rambaldi orchid. The real Sloane must relive a painful memory in order to get the Imposter to reveal the orchid location.
Directed by Jennifer GarnerWritten by Jon Robin BaitzGuest stars Amy Irving, Nick Spano, Joel Grey, John Benjamin Hickey, Angus Scrimm, Mark Gantt, Kseniya Buravskaya, Carole Androsky
Episode 20
After a tactical group infiltrates the DSR and steals Rambaldi artifacts, CIA director Hayden Chase discovers that the alarms at the DSR were disabled from Nadia's computer, allowing the raid to happen, and shows up at the apartment to question her. Soon Sloane and Jack arrive and suspect that Sophia, who had access to the computer while she was living with Syd and Nadia, is Elena Derevko. They follow her trail to a dead Rambaldi follower, a stunning betrayal, and a presumed dead family member...
Directed by Jeffrey BellWritten by Jeffery Bell, Jeffrey BellGuest stars Isabella Rossellini, Sonia Braga, Jeff Yagher, Andrew Divoff, Angela Bassett, Nick Jameson, Jared Poe, Braeden Marcott
Episode 21
Rambaldi's catastrophic endgame begins to fall into place as a giant version of the Circumference/Mueller device is found floating over city in Russia, driving the citizens made. After a wounded Dixon reveals that Irina is alive, Sydney, Nadia, and Jack set off to find her. Irina had been captured, and then duplicated using Project Helix, in order to give the impression that she was dead. Sydney and Nadia discover Irina is being held inside a camp in Tikal, safely in the clutches of Elena's army. Irina had apparently been working to counter Elena's organization, the Covenant, and actually PREVENT the Rambaldi endgame. Irina tells of a page she destroyed, a page that was key to Rambaldi's endgame. Under torture, she finally broke and recreated it for Elena. After a short respite, the transport turns towards Russia, and Sydney, Vaughn, Jack, Nadia, and Irina parachute down, towards Elena, Sloane, the Circumference....and destiny.
Directed by Lawrence TrillingWritten by Monica Owusu-Breen, Alison SchapkerGuest stars Lena Olin, Andrew Divoff, Angela Bassett, Alex Wexo
Episode 22
Jack, Sydney, Irina, Vaughn and Nadia parachute into Sovogda. They're supposed to dismantle a giant red ball turning people into zombies. At APO, Marshall and Weiss use the Blackwell Index to blackmail the Russian minister into giving them the access codes to a Russian satellite, they discover that Elena is uplinking the satellite. A CIA agent, Brodien reminds them that the Rambaldi device is broadcasting a subaudible frequency that physiologically alters people who drink it and it is irreversible. Elena learns of the APO team's arrival.
Directed by Lawrence TrillingWritten by Josh Appelbaum, André NemecGuest stars Lena Olin, Sonia Braga, Rob Benedict, Eric Anderson
Episode information updated Jul 24, 2026
Jennifer GarnerSydney Bristow
Michael VartanMichael Vaughn
Victor GarberJack Bristow
Ron RifkinArvin Sloane
Carl LumblyMarcus Dixon
Kevin WeismanMarshall Flinkman
Greg GrunbergEric Weiss
Rachel NicholsRachel Gibson
ABCUnited States
Bad RobotUnited States
Touchstone TelevisionUnited States
