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.
Streaming, rental and purchase options
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 tries to piece together the last two years of her life and discovers the fates of her friends and family. She confronts Vaughn about his marriage and learns the shocking fates of Jack and Sloane. Meanwhile, she is granted temporary CIA clearance on a case that may help her regain her memory.
Directed by Ken OlinWritten by J.J. AbramsGuest stars Oleg Taktarov, Kurt Fuller, Adam Alexi-Malle, Amanda Foreman, Elea Oberon, Michael Berry Jr.
Episode 2
Sydney's search for her past leads to a jailed Sark, but their Q&A is cut short when he becomes the ransom for a pair of abducted CIA scientists, whose kidnappers may be tied to the murder of his father. Jack contacts an old friend of sorts for info on Sloane's new world-peace project, and Vaughn makes a decision about his future as an operative.
Directed by Dan AttiasWritten by Alex Kurtzman, Roberto OrciGuest stars Kurt Fuller, Al Sapienza, Stephanie Venditto, Brad Greenquist, Igor Korošec, Ilia Volok, Bill Bolender, Andrew Borba
Episode 3
Sydney and Vaughn are reunited again as a team to prevent Sark from destroying the nation's satellite communications system. Meanwhile, Jack must find a way to stop Marshall from uncovering the identity of a familiar murderer. Sydney accompanies Vaughn and Lauren as they meet with Sloane to ask for a favor.
Directed by Jack BenderWritten by Jeff PinknerGuest stars Scott Adsit, Elizabeth Payne, Mark Ivanir, Pierrino Mascarino, Arthur Darbinyan, Deeonna Lanay, Patricia Rae
Episode 4
Sydney discovers a link to her missing two years in the form of Simon Walker, the dangerous and sexy leader of a group determined on retrieving deadly biological weapons. Meanwhile, Vaughn struggles with his own feelings of jealousy and longing while Sydney is on her mission, aware of the pressures his job is putting on his marriage to Lauren. Jack takes matters into his own hands to protect his daughter, purposefully revealing Sydney's deadly secret to Dixon in order to preserve her position inside the CIA.
Directed by Lawrence TrillingWritten by Monica Owusu-Breen, Alison SchapkerGuest stars Justin Theroux, Clifton Collins Jr., Amanda Foreman, Ray Proscia, Elizabeth Payne, Carlos Del Olmo, Fernando Jiménez, Marco Zunino
Episode 5
While Vaughn's life hangs in the balance, Lauren butts heads with Sydney after learning the part she played in his stabbing. Meanwhile, Sydney further questions Sloane's allegiances after he is kidnapped by Kazari Bomani, a kingpin in The Covenant; Jack's cover is jeopardized when he meets with Simon to dig up information on Sydney's missing two years; and Marshall is sent on his second mission with Sydney, posing as a high-stakes, southern gambler.
Directed by Ken OlinWritten by Jesse AlexanderGuest stars Justin Theroux, Djimon Hounsou, Clifton Collins Jr., Garret Sato, Virginia Pereira
Episode 6
Sydney's emotions are turned inside-out when she comes face-to-face with Allison, Francie's doppelgänger, who was presumed dead but is now a key figure in The Covenant. Meanwhile Lauren's search for Lazarey's murderer leads her closer to discovering a connection to Sydney, and Sydney begrudgingly is assigned as Sloane's CIA handler.
Directed by Lawrence TrillingWritten by Crystal Nix HinesGuest stars Kurt Fuller, Merrin Dungey, Peter J. Lucas, Colin Campbell, Alec Mapa, Dougald Park, Zoran Radanovich, Elea Oberon
Episode 7
Jack takes drastic measures to ensure that the NSC never finds out the truth about Sydney's murder of a Russian diplomat. But his actions place a heavy strain on Vaughn's marriage, as Lauren gets closer and closer to the truth about Sydney. Meanwhile, Sydney agrees to go on a mission with Sloane in order to thwart plans to obtain the operating system to a deadly weapon -- and she discovers an unlikely ally in the hunt for her missing two years.
Directed by Jack BenderWritten by J.R. OrciGuest stars Johnny Tri Nguyen, Luis Antonio Ramos, Clifton Collins Jr., Kevin Sutherland, Adrian Sparks, George Cheung, Lorenzo Caccialanza, Gino Montesinos
Episode 8
When Sydney is taken into custody by the NSC, Jack and Vaughn have no choice but to ally themselves with Sloane to rescue her. But with only hours to spare before she is forced to undergo a radical surgery to recover her memories, they must put togther an extraction team, headed by freelance operative Brill (Richard Roundtree, "Shaft"). Meanwhile, Lauren faces an impossible choice -- side with the NSC, who she wants to believe is doing the right thing, or with her husband.
Directed by Dan AttiasWritten by Breen FrazierGuest stars Richard Roundtree, Pruitt Taylor Vince, Kurt Fuller, Erick Avari, Damion Poitier, Javier Grajeda, Fred Saldone, Hector Atreyu Ruiz
Episode 9
After making a shocking discovery in the desert, Sydney agrees to submit to an experimental procedure conducted by an eccentric doctor, designed to retrieve her lost memories. But while Jack and Vaughn look on, Sydney's mind proves surprisingly resistant to letting her remember her missing time -- and the process of recovering it could end up killing her. Meanwhile, Lauren makes a great sacrifice in order to make her alibi believable to Lindsey after breaking Sydney out of NSC custody, and Sloane finds himself boxed in by an unlikely enemy -- one who wants to see Sydney Bristow eliminated permanently
Directed by Ken OlinWritten by Josh Appelbaum, André NemecGuest stars Erica Leerhsen, Kurt Fuller, David Cronenberg, Tristin Mays, Daniel E. Smith, Mark Bramhall, Jerry O'Donnell, Dan Warner
Episode 10
The identity of the mysterious "St. Aidan" forces Sydney to pull a stunned Will out of witness protection. But the pursuit sends the two old friends on a collision course with Allison -- the woman who ruined both their lives. Meanwhile, a zealous Lindsey arrests Jack and Vaughn as conspirators in Sydney's escape from NSC custody, Sloane, still under pressure from Lindsey, puts a plan in motion to eliminate Sydney, and Dr. Brezzel has an unpleasant run-in with Sark.
Directed by Jack BenderWritten by Jeff PinknerGuest stars Bradley Cooper, Kurt Fuller, David Cronenberg, Merrin Dungey, Mark Bramhall, Ivo Lopez, Jerry O'Donnell, Tony Guma
Episode 11
Sydney finally learns the shocking truth about her missing two years from an unlikely source.
Directed by Lawrence TrillingWritten by Jesse AlexanderGuest stars Terry O'Quinn, Bill Bolender, Mark Bramhall, George Gerdes, Steven Shaw, Yasha Blackman
Episode 12
Jack contacts a mysterious woman with ties to Irina to help him free Sydney and Vaughn, who have been captured and face a North Korean firing squad. But Jack is faced with a curious conundrum when the woman tells him that she will not put the rescue plan in motion until he fulfills a favor - assassinate Sloane.
Directed by Ken OlinWritten by Josh Appelbaum, André NemecGuest stars Griffin Dunne, Isabella Rossellini, Arnold Vosloo, Byron Chung, François Chau, Leo Lee, C.W. Pyun, Elea Oberon
Episode 13
Sydney and Vaughn are sent to retrieve the Doleac Agenda to gain an advantage over The Covenant. For this, Sydney and Weiss must convince rogue security systems designer Toni Cummings to help the CIA break into a Lethal Response System. Meanwhile, Sark approaches an unlikely ally to kill the Covenant's Cell leaders.
Directed by Maryann BrandonWritten by Monica Owusu-Breen, Alison SchapkerGuest stars Vivica A. Fox, Quentin Tarantino, Patricia Wettig, Amanda Foreman, Ian Buchanan, Alex Stemkovsky
Episode 14
While trying to retrieve a bomb, Sydney and Vaughn are ambushed by unidentified assailants. Meanwhile, Lauren and Sark continue to solidify their new partnership, Sloane divulges a dark secret to Dr. Barnett and Marshall shows the strains of new fatherhood.
Directed by Lawrence TrillingWritten by Laurence AndriesGuest stars Patricia Wettig, Fritz Michel
Episode 15
Sydney and Vaughn must convince bomb maker Daniel Ryan that they are part of The Covenant in order to find out where he has hidden one of his devices. But Sydney discovers that her ties to the bomber could lead him on a suicide mission.
Directed by Jack BenderWritten by R.P. Gaborno, Christopher HollierGuest stars Griffin Dunne, Stana Katic, Ricky Gervais, Nicholas Hosking, François Giroday, David S. Lee, Ciaran Reilly
Episode 16
Sydney attempts to rescue Dixon's kids after they are kidnapped by Sark, Lauren's status as a double agent is put to the test when she learns that she has to work with her father, and Sloane is framed as a CIA mole.
Directed by Lawrence TrillingWritten by J.R. OrciGuest stars Jenny Gago, Raymond J. Barry, Patricia Wettig, Tristin Mays, Daniel E. Smith, Kevin Sutherland, Christian Boeving
Episode 17
Sydney and Vaughn must track Kazari Bomani down to get hold of a piece of the Rambaldi puzzle. Meanwhile, Jack reveals his suspicions to Senator Reed about his daughter Lauren's allegiances, and Vaughn decides what to do about his marriage.
Directed by Max MayerWritten by Crystal Nix HinesGuest stars Stephen Spinella, Djimon Hounsou, Peggy Lipton, Raymond J. Barry, Dmitri S. Boudrine, Dimitri Diatchenko, Herman Sinitzyn, Kevin Sutherland
Episode 18
Sydney and Jack warn a disbelieving Vaughn about their suspicions of Lauren being the CIA mole. Meanwhile, Bomani and Sark take possession of the Rambaldi machine, Sydney and Vaughn must stop a Covenant virus that's crippling medical facilities around the world, Sloane's secret is revealed to Jack, and Bomani begins to lose faith in Lauren's ability to carry out her Covenant missions.
Directed by Jack BenderWritten by Monica Owusu-Breen, Alison SchapkerGuest stars Morgan Weisser, Djimon Hounsou, Jordi Caballero, Geno Silva, Vincent Riotta
Episode 19
After finding out that Lauren is working for the Covenant, Vaughn is told to keep up the façade of a happy marriage in order to keep tabs on his wife's activities. But he's in for a shock when he uncovers the truth about Lauren's mother, Olivia. Meanwhile, Jack refuses to help exonerate Sloane of his crimes and put in motion a stay of execution, and a monk discloses the identity of the Rambaldi "Passenger" to Sydney.
Directed by Ken OlinWritten by Josh Appelbaum, André NemecGuest stars Peggy Lipton, Glenn Morshower, Patricia Wettig, David Carradine, Jimmy Bridges, Rico McClinton
Episode 20
After discovering the identity of the Rambaldi "Passenger," Sydney and Jack seek the aid of Sloane, to track the "Passenger" down. Meanwhile, after learning a secret about his father from Thomas Brill, Vaughn is kidnapped and tortured by Lauren and Sark, who are about to track "The Passenger" down themselves.
Directed by Jack BenderWritten by Monica Owusu-Breen, Alison Schapker, J.R. OrciGuest stars Richard Roundtree, Glenn Morshower, Mía Maestro, Erik Jensen, Yun Choi
Episode 21
With the aid of Katya Derevko and CIA imprisoned security systems designer Toni Cummings, Sydney and Vaughn attempt to track down Sloane and Nadia. But Lauren and Sark are also in hot pursuit of them in order to uncover the secrets of Rambaldi. Meanwhile, Vaughn's obsession with tracking down Lauren is beginning to consume him, Sydney and Vaughn turn the tables on an old foe, and Katya expresses her attraction to Jack.
Directed by Lawrence TrillingWritten by Jesse AlexanderGuest stars Vivica A. Fox, Isabella Rossellini, Mía Maestro, Ric Young, Mikhail Tank, Ismael Kanater, Mio Dzakula
Episode 22
Lauren stages a stunning betrayal to steal classified materials from the CIA. Meanwhile, Vaughn comes face to face with his darkest demons in pursuit of his wife; Nadia must decide whether or not she can trust her father, Sloane, in the pursuit of Rambaldi's most priceless artifact; and Sydney receives a shattering revelation that will make her question everything - and everyone - she thought she could trust.
Directed by Ken OlinWritten by Jeff PinknerGuest stars Ed Brigadier, Isabella Rossellini, Cotter Smith, Mía Maestro, Burt Bulos, Jordi Caballero, Cosimo Canale, Kendall Clement
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
