Sydney Bristow

Sydney Bristow

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Sydney Anne Bristow played by Jennifer Garner
Jennifer Garner
Jennifer Anne Affleck , better known as Jennifer Garner, is an American actress and film producer. Garner gained recognition on television for her performance as CIA agent Sydney Bristow in the thriller drama series Alias, which aired on ABC for five seasons from 2001 to 2006...

, is the main character
Fictional character
A character is the representation of a person in a narrative work of art . Derived from the ancient Greek word kharaktêr , the earliest use in English, in this sense, dates from the Restoration, although it became widely used after its appearance in Tom Jones in 1749. From this, the sense of...

 and protagonist
A protagonist is the main character of a literary, theatrical, cinematic, or musical narrative, around whom the events of the narrative's plot revolve and with whom the audience is intended to most identify...

 on the television series
Television program
A television program , also called television show, is a segment of content which is intended to be broadcast on television. It may be a one-time production or part of a periodically recurring series...

Alias (TV series)
Alias is an American action television series created by J. J. Abrams which was broadcast on ABC for five seasons, from September 30, 2001 to May 22, 2006...

. She is an American woman with Russian-American
Russian American
Russian Americans are primarily Americans who traces their ancestry to Russia. The definition can be applied to recent Russian immigrants to the United States, as well as to settlers of 19th century Russian settlements in northwestern America which includes today's California, Alaska and...

 family background
An ancestor is a parent or the parent of an ancestor ....

 who works as a spy
SPY is a three-letter acronym that may refer to:* SPY , ticker symbol for Standard & Poor's Depositary Receipts* SPY , a satirical monthly, trademarked all-caps* SPY , airport code for San Pédro, Côte d'Ivoire...

 for the CIA.

Sydney is depicted in the series as being strong both physically and emotionally. She deals with some significant trauma over the years: the death of her fiancé, the death of her best friend, the realization that her mother
Irina Derevko
Irina Derevko , is a fictional character on the television series Alias, and a main character during the second season of the series. Irina, played by Lena Olin, is the mother of the central character, Sydney Bristow.-Biography:...

 was a former KGB
The KGB was the commonly used acronym for the . It was the national security agency of the Soviet Union from 1954 until 1991, and was the premier internal security, intelligence, and secret police organization during that time.The State Security Agency of the Republic of Belarus currently uses the...

 spy, the estrangement of many of her friends and the constant activity and changes that she must endure from being a spy
Espionage or spying involves an individual obtaining information that is considered secret or confidential without the permission of the holder of the information. Espionage is inherently clandestine, lest the legitimate holder of the information change plans or take other countermeasures once it...

 on a regular basis. Sydney is highly skilled in Krav Maga
Krav Maga
Krav Maga is a noncompetitive eclectic self-defense system developed in Europe that involves striking techniques, wrestling and grappling. Krav Maga is known for its focus on real-world situations and extremely efficient, brutal counter-attacks...

 and is quite a polyglot
Polyglot (person)
A polyglot is someone with a high degree of proficiency in several languages. A bilingual person can speak two languages fluently, whereas a trilingual three; above that the term multilingual may be used.-Hyperpolyglot:...

, speaking English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

, Russian
Russian language
Russian is a Slavic language used primarily in Russia, Belarus, Uzbekistan, Kazakhstan, Tajikistan and Kyrgyzstan. It is an unofficial but widely spoken language in Ukraine, Moldova, Latvia, Turkmenistan and Estonia and, to a lesser extent, the other countries that were once constituent republics...

, German
German language
German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

, Greek
Greek language
Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

, Dutch
Dutch language
Dutch is a West Germanic language and the native language of the majority of the population of the Netherlands, Belgium, and Suriname, the three member states of the Dutch Language Union. Most speakers live in the European Union, where it is a first language for about 23 million and a second...

, French
French language
French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...

, Italian
Italian language
Italian is a Romance language spoken mainly in Europe: Italy, Switzerland, San Marino, Vatican City, by minorities in Malta, Monaco, Croatia, Slovenia, France, Libya, Eritrea, and Somalia, and by immigrant communities in the Americas and Australia...

, Spanish
Spanish language
Spanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...

, Portuguese
Portuguese language
Portuguese is a Romance language that arose in the medieval Kingdom of Galicia, nowadays Galicia and Northern Portugal. The southern part of the Kingdom of Galicia became independent as the County of Portugal in 1095...

, Norwegian
Norwegian language
Norwegian is a North Germanic language spoken primarily in Norway, where it is the official language. Together with Swedish and Danish, Norwegian forms a continuum of more or less mutually intelligible local and regional variants .These Scandinavian languages together with the Faroese language...

, Swedish
Swedish language
Swedish is a North Germanic language, spoken by approximately 10 million people, predominantly in Sweden and parts of Finland, especially along its coast and on the Åland islands. It is largely mutually intelligible with Norwegian and Danish...

, Romanian
Romanian language
Romanian Romanian Romanian (or Daco-Romanian; obsolete spellings Rumanian, Roumanian; self-designation: română, limba română ("the Romanian language") or românește (lit. "in Romanian") is a Romance language spoken by around 24 to 28 million people, primarily in Romania and Moldova...

, Hungarian
Hungarian language
Hungarian is a Uralic language, part of the Ugric group. With some 14 million speakers, it is one of the most widely spoken non-Indo-European languages in Europe....

, Hebrew
Hebrew language
Hebrew is a Semitic language of the Afroasiatic language family. Culturally, is it considered by Jews and other religious groups as the language of the Jewish people, though other Jewish languages had originated among diaspora Jews, and the Hebrew language is also used by non-Jewish groups, such...

, Uzbek
Uzbek language
Uzbek is a Turkic language and the official language of Uzbekistan. It has about 25.5 million native speakers, and it is spoken by the Uzbeks in Uzbekistan and elsewhere in Central Asia...

, Arabic
Arabic language
Arabic is a name applied to the descendants of the Classical Arabic language of the 6th century AD, used most prominently in the Quran, the Islamic Holy Book...

, Persian
Persian language
Persian is an Iranian language within the Indo-Iranian branch of the Indo-European languages. It is primarily spoken in Iran, Afghanistan, Tajikistan and countries which historically came under Persian influence...

, Urdu
Urdu is a register of the Hindustani language that is identified with Muslims in South Asia. It belongs to the Indo-European family. Urdu is the national language and lingua franca of Pakistan. It is also widely spoken in some regions of India, where it is one of the 22 scheduled languages and an...

, Indonesian
Indonesian language
Indonesian is the official language of Indonesia. Indonesian is a normative form of the Riau Islands dialect of Malay, an Austronesian language which has been used as a lingua franca in the Indonesian archipelago for centuries....

, Cantonese, Mandarin, Japanese
Japanese language
is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is a member of the Japonic language family, which has a number of proposed relationships with other languages, none of which has gained wide acceptance among historical linguists .Japanese is an...

, Korean
Korean language
Korean is the official language of the country Korea, in both South and North. It is also one of the two official languages in the Yanbian Korean Autonomous Prefecture in People's Republic of China. There are about 78 million Korean speakers worldwide. In the 15th century, a national writing...

, Hindi, Vietnamese
Vietnamese language
Vietnamese is the national and official language of Vietnam. It is the mother tongue of 86% of Vietnam's population, and of about three million overseas Vietnamese. It is also spoken as a second language by many ethnic minorities of Vietnam...

, Polish
Polish language
Polish is a language of the Lechitic subgroup of West Slavic languages, used throughout Poland and by Polish minorities in other countries...

, Serbian
Serbian language
Serbian is a form of Serbo-Croatian, a South Slavic language, spoken by Serbs in Serbia, Bosnia and Herzegovina, Montenegro, Croatia and neighbouring countries....

, Czech
Czech language
Czech is a West Slavic language with about 12 million native speakers; it is the majority language in the Czech Republic and spoken by Czechs worldwide. The language was known as Bohemian in English until the late 19th century...

, Ukrainian
Ukrainian language
Ukrainian is a language of the East Slavic subgroup of the Slavic languages. It is the official state language of Ukraine. Written Ukrainian uses a variant of the Cyrillic alphabet....

, and Bulgarian
Bulgarian language
Bulgarian is an Indo-European language, a member of the Slavic linguistic group.Bulgarian, along with the closely related Macedonian language, demonstrates several linguistic characteristics that set it apart from all other Slavic languages such as the elimination of case declension, the...

 in various episodes. Throughout the series her code names are Bluebird, Freelancer, Mountaineer, and Phoenix.

Biographical information

Sydney Bristow was born April 17, 1975. For the first six years of her life she lived with both of her parents, Jack
Jack Bristow
Jonathan "Jack" Donahue Bristow, played by Victor Garber, is Sydney Bristow's father on the television series Alias. Jack is widely referred to as "Spy Daddy" in Alias fandom, and consistently ranks as one of the most popular characters on the show...

 and Laura Bristow (real name Irina Derevko
Irina Derevko
Irina Derevko , is a fictional character on the television series Alias, and a main character during the second season of the series. Irina, played by Lena Olin, is the mother of the central character, Sydney Bristow.-Biography:...

). Although her father's work with the CIA kept him away from home much of the time. Sydney and her family were living in rural Maryland
Maryland is a U.S. state located in the Mid Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware to its east...

 until, at the age of two, Jack had been transferred to Los Angeles
Los Ángeles
Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...

. In 1981 her mother, who was also an undercover agent for the KGB
The KGB was the commonly used acronym for the . It was the national security agency of the Soviet Union from 1954 until 1991, and was the premier internal security, intelligence, and secret police organization during that time.The State Security Agency of the Republic of Belarus currently uses the...

, faked her death to prevent being apprehended by the FBI. Afterwards Jack was taken into custody for some time, because it was believed that he also was part of a larger conspiracy. Jack named Arvin Sloane
Arvin Sloane
Arvin Sloane is a fictional character played by Ron Rifkin. He was the former director of SD-6 on the television series, Alias.-Background:...

 as Sydney's temporary guardian. Sydney went to live with Sloane and his wife Emily
Emily Sloane
Emily Sloane is a fictional character from the American television series Alias. She was portrayed by Amy Irving.-Biography:Emily Sloane was married to SD-6 head Arvin Sloane for more than 30 years. Little is known of her life outside of her marriage to Arvin. She had worked for the State...

, for a time (Note that this is a retcon
Retroactive continuity is the alteration of previously established facts in a fictional work. Retcons are done for many reasons, including the accommodation of sequels or further derivative works in a series, wherein newer authors or creators want to revise the in-story history to allow a course...

 as it was previously established that Sydney did not meet Arvin or Emily until Sydney had already started working for SD-6. Though Sydney had stated that she had large memory gaps from around the time of her mothers death indicating that perhaps something else had happened to remove her memory of that time).

When Jack was finally cleared, he began drinking heavily
Alcoholism is a broad term for problems with alcohol, and is generally used to mean compulsive and uncontrolled consumption of alcoholic beverages, usually to the detriment of the drinker's health, personal relationships, and social standing...

 and became more of an absentee father, leaving Sydney to be raised by nannies
A nanny, childminder or child care provider, is an individual who provides care for one or more children in a family as a service...

. In her later childhood, Sydney began exhibiting unusually high intelligence and problem solving
Problem solving
Problem solving is a mental process and is part of the larger problem process that includes problem finding and problem shaping. Consideredthe most complex of all intellectual functions, problem solving has been defined as higher-order cognitive process that requires the modulation and control of...


When Sydney was 19 years old and a freshman in college, a man approached her and told her that he worked with US intelligence and that they wanted to interview her because she fitted a profile. She declined at first but then decided to join them. After meeting with an organization she believed was the Central Intelligence Agency
Central Intelligence Agency
The Central Intelligence Agency is a civilian intelligence agency of the United States government. It is an executive agency and reports directly to the Director of National Intelligence, responsible for providing national security intelligence assessment to senior United States policymakers...

, she signed "dozens of non-disclosure agreements" and was offered a job.

They had Sydney take a job as an office assistant on the twentieth floor of Credit Dauphine, a corporate bank in downtown Los Angeles
Los Ángeles
Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...

. She assumed that the bank was somehow affiliated with the CIA. When she told her father about her job after about a month, he ordered her to quit because as a double agent within SD-6, he knew the bank was a front. Sydney angrily refused to quit and this led to the beginning of a several year estrangement in their relationship.

Eventually she was told that she was ready for the transition, which involved eight months of training. It was during the training that Sydney first heard the term SD-6
Alliance of Twelve
The Alliance of Twelve, with SD-6 being one of its subsidiary cells, is a fictional international organized crime group in the television series Alias...

. At this time, she believed that SD-6 was affiliated with the CIA, that it was a black ops division of the CIA, funded by the CIA's black budget. These operations are highly classified, even hidden from congressional oversight. They led her to believe that SD-6 was one of these divisions and that that was why they didn't operate through Langley, Virginia
Langley, Virginia
Langley is an unincorporated community in the census-designated place of McLean in Fairfax County, Virginia, United States.The community was essentially absorbed into McLean many years ago, although there is still a Langley High School...


The transition ended when they made reference to SD-6 headquarters. They told her they'd take her there. What she didn't realize was that the headquarters was in the same building. Her role within SD-6 was desk work, at first, but she advanced quickly. Within the first year, she was assigned to reconnaissance missions.

Sydney was told that the objective of SD-6 was, "the retrieval and study of intelligence, both military and industrial, throughout the world that is critical to the superiority and survival of the United States of America."

Seven years after joining SD-6, Sydney discovered that SD-6 was actually a branch of the Alliance of Twelve, an international organized crime
Organized crime
Organized crime or criminal organizations are transnational, national, or local groupings of highly centralized enterprises run by criminals for the purpose of engaging in illegal activity, most commonly for monetary profit. Some criminal organizations, such as terrorist organizations, are...

 group involved in the trade of intelligence and weapons that was an enemy of the United States.

Season 1

Sydney was engaged to be married to her boyfriend Danny Hecht, but he was killed by SD-6 after Sydney told him that she worked for the CIA. Shortly thereafter, she was informed of what SD-6 was by her mostly estranged father, who worked in the highest levels of SD-6.

Sydney went to the real CIA with her knowledge of SD-6, and was recruited by the CIA into working as a double agent
Double agent
A double agent, commonly abbreviated referral of double secret agent, is a counterintelligence term used to designate an employee of a secret service or organization, whose primary aim is to spy on the target organization, but who in fact is a member of that same target organization oneself. They...

 to bring down SD-6. Her handler, Agent Michael Vaughn
Michael Vaughn
Michael C. Vaughn is a fictional character on the television series Alias. Played by Michael Vartan, Vaughn is one of Sydney Bristow's co-workers and her ongoing love interest. He, like Sydney, is skilled in a variety of areas...

, was the man who gave her missions from the CIA. She soon learned her own father was a double agent as well. During her time at SD-6, Sydney performed missions with Marcus Dixon
Marcus Dixon (Alias)
Marcus R. Dixon is a fictional character on the television series, Alias. He has been one of Sydney Bristow's coworkers and the CIA's Director of Joint Task Force. He is portrayed by Carl Lumbly.-Character biography:...

, who sometimes became suspicious that Sydney was a double agent. Dixon was still under the impression that SD-6 was part of the U.S. Government. Sydney had to balance all these new revelations with keeping all these secrets from her friends, notably Will Tippin
Will Tippin
William "Will" D. Tippin is a fictional character, one of Sydney Bristow's friends on the television series Alias. He is portrayed by Bradley Cooper.-Character biography:...

 and Francie Calfo
Francie Calfo
Francine "Francie" Calfo is a fictional character on the television series Alias, portrayed by Merrin Dungey. She is Sydney Bristow's close friend.-Biography:Francie was Sydney Bristow's best friend and roommate during the beginning of the series...


During this season, the head of SD-6, Arvin Sloane, was obsessed with Milo Rambaldi
Milo Rambaldi
Milo Giacomo Rambaldi is a fictional person from the American television series Alias. The work of Rambaldi, often centuries ahead of its time and tied to prophecy, plays a central role in the show.According to Alias creator J.J...

, a man from the 15th century who was able to create brilliant devices that were far ahead of their time. Sydney worked on a number of missions to retrieve or modify these Rambaldi devices to prevent them from falling into the hands of SD-6. During the season finale, on one such mission to destroy such a device
Mueller device
A Mueller device is a mysterious piece of technology in the US television series Alias. It usually appears as a hook-shaped armature which levitates a red-orange liquid-filled sphere. It is named for Oskar Mueller, a chemist who was believed to have invented it, though it is later revealed to have...

, Sydney is captured and discovers that the organization that SD-6 has been pursuing is being run by Irina Derevko
Irina Derevko
Irina Derevko , is a fictional character on the television series Alias, and a main character during the second season of the series. Irina, played by Lena Olin, is the mother of the central character, Sydney Bristow.-Biography:...

, Sydney's mother and a former KGB
The KGB was the commonly used acronym for the . It was the national security agency of the Soviet Union from 1954 until 1991, and was the premier internal security, intelligence, and secret police organization during that time.The State Security Agency of the Republic of Belarus currently uses the...


Season 2

During season 2, Sydney continues to act as a double agent inside SD-6 and also performs direct missions for the CIA. Irina Derevko turns herself in to the CIA and provides valuable information to help bring down SD-6. Midway through the season, the CIA finally has enough information to bring down the entire Alliance organization and the assault on SD-6 headquarters, led by Sydney and Vaughn. The organization comes tumbling down, but Sloane gets away and is now working covertly with Julian Sark
Julian Sark
Julian Sark is a recurring fictional character portrayed by David Anders on the ABC television series Alias. The series follows Sydney Bristow, an operative working for an organization called SD-6 which she believes is a covert branch of the Central Intelligence Agency...


Following the fall of SD-6, Sydney decides she wants to leave the CIA but finds herself unable to do so knowing that Sloane is still free. Sydney also has to work to make amends with Dixon, who is bitter that Sydney knew SD-6 was not part of the U.S. Government and didn't tell him, although they are eventually able to patch things up and Dixon begins to work with the CIA.

During this time, Sydney's friend and roommate Francie has secretly been replaced
Project Helix
Project Helix is the name of a fictional technology in the TV series Alias. The device is used to rewrite a person's DNA, effectively morphing them into a clone of the person from whom the replacement DNA was procured. The only way to detect a double is through a deliberate flaw built into the...

 by an agent of Sloane and Sark's, Allison Doren. Sydney eventually figures out that "Francie" is not who she says she is and the two engage in a battle which destroys the entire apartment. Sydney shoots Allison three times, apparently killing her, but Sydney is also severely wounded and passes out.

When Sydney wakes up, she is in Hong Kong
Hong Kong
Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...

 and comes to find out that two years have passed without her knowledge.

Season 2 saw a fundamental change in Sydney's character, allegedly introduced in order to give the show more action. In the first season, Sydney almost never kills, preferring fisticuffs and tranquilizer guns to deadly blows and real bullets. Starting this season, she behaves more like a stereotypical spy, usually killing enemies and rarely using tranq guns. Although there were some minor incidents prior, the episode "Phase One" is generally considered to mark the arrival of this new version of Sydney. While some fans have criticized this change in Sydney's character, others have suggested that it might have been influenced by the arrival of her mother.

Season 3

Sydney now has to deal with the pain of not knowing what has happened for the previous two years of her life, but also the fact that Vaughn is now married to another woman, National Security Council
United States National Security Council
The White House National Security Council in the United States is the principal forum used by the President of the United States for considering national security and foreign policy matters with his senior national security advisors and Cabinet officials and is part of the Executive Office of the...

 liaison Lauren Reed
Lauren Reed
Lauren Reed is a fictional character played by Melissa George in the Alias television series. She is Michael Vaughn's wife during the third season of the series.-Character biography:...

. Sydney tries to manipulate the CIA to stay in the loop of the organization (they don't trust her because of her absence).

Sydney learns that an organization known as The Covenant
Covenant (Alias)
In the television series Alias, The Covenant is a large, powerful, and secretive intelligence/terrorist organization.The Covenant was a "loose affiliation of Russian nationalists" composed of retired KGB and former Central Committee members, all dedicated to the new world envisioned by Milo...

 seems to be involved with her disappearance. In the meantime, Sydney continues to perform missions for the CIA, while working with her father to find out more about her past.

Eventually Sydney learns through FBI Assistant Director Kendall
FBI Assistant Director Kendall
Assistant Director Kendall is a fictional character from the television series Alias, played by Terry O'Quinn.-Season 1:He first appeared in the first season as the head of an FBI tribunal brought in from Washington DC to interrogate Sydney Bristow after she is arrested following evidence linking...

 (who is actually the director of the Department of Special Research
Department of Special Research
The Department of Special Research is a fictional government agency from the American television series Alias. The DSR is introduced in the first season episode The Prophecy....

) that she worked in the employ of the Covenant as a supposedly brainwashed assassin, although she was able to resist their attempts to manipulate her due to her experiences with Project Christmas
Project Christmas
Project Christmas is a fictional black ops project from the television show Alias. Developed by the Central Intelligence Agency and headed by Jack Bristow in the 1970s, the project was designed to identify and train children as sleeper agents to become future spies...

 and report to the CIA during this time. Eventually, she wiped her own memories to conceal information and perhaps also because of the horrifying realization that the Covenant had extracted her eggs in order to fulfill one of Rambaldi's prophecies. She was also greatly disturbed that she chose to kill an unarmed man in cold blood rather than risk losing her cover as a brainwashed assassin.

Sydney and Vaughn continue to suppress their feelings for each other in light of Vaughn's relationship with Lauren. However, it is discovered that Lauren is actually an agent working for the Covenant, although both Sydney and Vaughn are, at first, unaware of this fact.

The CIA learns that there is a mole in the Los Angeles office. Jack is assigned to find the mole and soon starts to suspect Lauren. Jack confronts Lauren's father, Senator Reed, but he dismisses it.

Meanwhile Vaughn decides to separate from Lauren. Lauren tells Sark and Sark explains that the last time Vaughn strayed from a relationship because of Sydney he quickly reconnected when his then-girlfriend Alice Williams' father died. Sark orders Lauren to kill her father. Lauren cannot go through with it but her mother bursts in and finishes the job. They frame Senator Reed for being the mole. Vaughn quickly recommits to Lauren, breaking Sydney's heart.

On a mission to meet a Covenant asset, Sydney sees Lauren. When she tells Vaughn he dismisses it. Sydney talks to Jack and then Jack talks to Vaughn telling him the signs that his wife is betraying him. When Vaughn becomes suspicious he looks in Lauren's suitcase and discovers evidence that she does work for the Covenant.

Vaughn tells Jack and Sydney and he is ordered by Dixon to pretend that he is unaware of Lauren's betrayal. Lauren soon finds out that she has been played by Vaughn and she and Sark kidnap him. After torturing him and failing to get any information they leave him for dead. Weiss finds Vaughn and he is taken to the hospital.

Sydney soon discovers that the Passenger is Nadia Santos
Nadia Santos
Nadia Santos is a fictional character in the television series Alias, and a main character during the series' fourth season. She is played by Mía Maestro.-Biography:...

, her half-sister by the way of an affair between Irina and Sloane. After a rescue mission, Sydney's sister is taken by Sloane so he can get the formula that was stored in her brain by Rambaldi (actually her unique nervous system can replay the graphical hand movements encoded in the Rambaldi Fluid-protein strands that cause unconscious, movements like handwriting). Sydney rescues her again, but Nadia later elects to accompany Sloane in search of the Rambaldi artifact known as The Sphere of Life.

Lauren enters the CIA office disguised as Sydney and steals information. Sark is captured and interviewed by Vaughn. Sark gives up Lauren and Vaughn resolves to kill her. Vaughn tracks her down and brings her to an empty warehouse. As Lauren dangles from the ceiling, Vaughn states that he loves Sydney more than he hates Lauren thus he will not kill Lauren. He does, however, plan to douse her in hydrochloric acid, rendering her unrecognizable. Sydney's aunt, the ambiguous Katya Derevko
Katya Derevko
Yekaterina "Katya" Derevko, alias The Black Sparrow, was the second of the three Derevko sisters to be introduced on the ABC television series Alias. She was played by Isabella Rossellini.-Character Biography:...

, stabs him in the back. When Sydney learns about Vaughn, she goes after Lauren herself. Vaughn goes after her and arrives just in time to save Sydney from Lauren. As Vaughn and Sydney kiss, Lauren tries to make one last shot. Vaughn sees this and shoots her dead. Before Lauren dies she tells Sydney that there is a safe deposit box
Safe deposit box
A safe deposit box or wrongly referred to as a safety deposit box is an individually-secured container, usually held within a larger safe or bank vault. Safe deposit boxes are generally located in banks, post offices or other institutions...

 in Wittenburg
Wittenburg is a town in the district Ludwigslust-Parchim in Mecklenburg-Vorpommern, Germany. Population 5570, area 46.25 km². Wittenburg should not be confused with the much bigger Wittenberg....

 that has information about her.

Sydney goes to the box and finds secret CIA documents about her. Jack gets there and tells her that she was never supposed to find them.

Season 4

Several months after her discovery, Sydney is once again estranged from her father, having discovered (through the secret documents) that he had killed Irina Derevko. Following a botched mission in Shanghai
Shanghai is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China, with a total population of over 23 million as of 2010...

, she receives a dressing down at a performance review, is demoted, and subsequently resigns from the CIA.

In truth, Sydney has been recruited into APO (Authorized Personnel Only
Authorized Personnel Only
Authorized Personnel Only , is a fictional black ops unit within the Central Intelligence Agency in the American TV series Alias. It was formed at the beginning of Season 4 and is headquartered beneath the Los Angeles Subway system....

), a new black op
Black op
A black operation or black op is a covert operation typically involving activities that are highly clandestine and often outside of standard military protocol or even against the law.-Origins:...

s division of the CIA patterned after SD-6. Much to her dismay, this new agency is headed by Sloane, who oversees a handpicked team which includes Sydney, Jack Bristow, Vaughn, and Dixon. During APO's first mission, Marshall is also recruited, as is her half-sister, Nadia. Her former colleague, Eric Weiss
Eric Weiss
Eric Weiss is a fictional character, played by Greg Grunberg, from the television series Alias. He is one of Sydney Bristow's CIA co-workers....

, thinks that Sydney is working for a bank - the same cover she had used when working for SD-6.

During the course of APO's first mission, to bring down a terrorist and assassin-for-hire, she learns the man was actually hired to kill her - by Irina. Jack subsequently killed Irina to protect his daughter. Meanwhile, Sydney rekindles her romance with Vaughn. Later, it is revealed that Irina is not actually dead - Jack killed a genetic double in an elaborate deception orchestrated by Irina's evil sister, Elena, who recruits Sloane in activating a huge Mueller device
Mueller device
A Mueller device is a mysterious piece of technology in the US television series Alias. It usually appears as a hook-shaped armature which levitates a red-orange liquid-filled sphere. It is named for Oskar Mueller, a chemist who was believed to have invented it, though it is later revealed to have...

 invented by Rambaldi, which has the potential to destroy the world. Irina is rescued from Elena's clutches and reunited with her family - including Nadia, who she hasn't seen for years - and together they fly to Russia to stop Elena's plans.

Around this time, after some twists and turns and ups and downs in their relationship, Vaughn finally proposes marriage prior to the mission to go after Elena. Sydney doesn't answer just yet. Finally, when she is about to destroy the Mueller device, Sydney goes back to Vaughn and gives him an affirmative reply.

During the mission in Russia, it is revealed that Sloane was able to infiltrate the drinking water of the city through his charity, and all who drunk this water and were exposed to the Mueller device were genetically altered and became excessively violent. When Nadia is captured by Elena, she is injected with the infected water and consequently attempts to kill Sydney.

The season ends on a cliffhanger when Vaughn reveals to Sydney that his real name is not Michael Vaughn, and depending on who is asked, he might be a "bad guy". At that moment, their car is T-boned by an unknown assailant.

Season 5

Sydney and Vaughn survive the car crash, but Vaughn is taken by their assailants. He manages to escape and tells Sydney that his real name is André Michaux. He also tells her that he's been working for several years to uncover the activities of a mysterious organization known as Prophet Five. His father before him had also worked to gather intel on Prophet Five. Shortly thereafter, Sydney learns she is pregnant and Vaughn is shot and apparently killed by a rogue agent posing as a CIA officer. Four months later, Sydney makes contact with Renée Rienne
Renée Rienne
Renée Rienne is a fictional character in the spy-fi television series Alias. Played by Élodie Bouchez, she was introduced as a new character for the fifth season...

, an assassin on the CIA's most wanted list, who had been working with Vaughn, and whose father had worked with Vaughn's father, to bring down Prophet Five.

Sydney finds a kindred spirit in Rachel Gibson, a young, inexperienced agent rescued from "The Shed", a covert criminal organization that, much like SD-6, operates under the alias of a CIA black-ops division. Gibson, like Sydney years earlier, had been duped into believing she was working for the CIA. Now a member of APO, Gibson is learning the ways of being a field agent, with Sydney her designated handler, just as Michael had worked with her. With Nadia still comatose in the hospital, Gibson has moved into Sydney's home.

Sydney has also put at least some demons of the past behind her. Now fully reconciled with her father, she has also expressed some forgiveness of Sloane, to the point of writing a letter of recommendation for Sloane's release hearing.

Sydney continues to go on missions when her condition allows, often using the pregnancy as part of her disguises. However, in the episode "Solo", she came to realize that these days might be fast coming to a (temporary) end when she is not allowed to go on a mission due to her condition.

Three weeks before her due date, Sydney is captured by Prophet Five in order to force her (via a form of drug-induced hypnosis) to remember details of a giant SD-6 flowchart that she had been shown by Michael Vaughn during one of their first meetings. Encouraged by her mental recreation of Michael Vaughn, she is able to resist the hypnosis and provide false information to her kidnappers (who, unbeknownst to Sydney, include Irina). Sydney discovers that she has been stranded aboard a freighter at sea where she attempts to elude Prophet Five and their chief minion, Kelly Peyton
Kelly Peyton
Kelly Peyton is a fictional character played by Amy Acker on the television series Alias. She works for a terrorist organization known as Prophet Five, which is the focus of the fifth and final season of the series.-Character biography:...

. During this incident, she discovers that her family doctor is actually a Prophet Five agent, and suffers a complication with her pregnancy that (to her later surprise) is corrected by Prophet Five and the baby is saved.

After being extracted by APO, Sydney is reunited with her mother and together with her and Jack they travel to Vancouver
Vancouver is a coastal seaport city on the mainland of British Columbia, Canada. It is the hub of Greater Vancouver, which, with over 2.3 million residents, is the third most populous metropolitan area in the country,...

 in order to obtain a mysterious object called "The Horizon" which Prophet Five believed Sydney possessed. During this mission, which is complicated by the discovery that Irina works for Prophet Five and a subsequent attack by Peyton, Sydney goes into labor and — with the aid of Irina and Jack — gives birth to a baby girl, named Isabelle
Isabelle Vaughn
Isabelle Bristow Vaughn is a fictional character from the ABC television series Alias. She is the daughter of Sydney Bristow and Michael Vaughn. The events surrounding her birth are a focal point of the final season of the series...

. Irina subsequently disappears with The Horizon.

After the birth of Isabelle, it is revealed that Vaughn didn't die. After his shooting, Jack helped him fake his death and hide in Bhutan
Bhutan , officially the Kingdom of Bhutan, is a landlocked state in South Asia, located at the eastern end of the Himalayas and bordered to the south, east and west by the Republic of India and to the north by the People's Republic of China...


About a month after giving birth, Sydney returns to duty when Anna Espinosa is recruited by Peyton to kidnap Will Tippin. Espinosa implants an explosive in Tippin's head and demands that page 47 of Rambaldi's manuscript be turned over to her in return for the disarming code. Sydney and Will battle Anna but lose page 47, and in the process Anna uses an unknown chemical agent to collect genetic material from Sydney. Anna goes through the genetic doubling process and becomes Sydney's duplicate.

After Anna kills Renée Rienne while she is on a mission with APO, a chip bearing Michael Vaughn's real name (André Michaux) is discovered implanted in her body. The chip bears what appears to be a corrupted code. Sydney heads to Nepal to meet with Vaughn but is intercepted by an agent of Prophet Five while Anna keeps Sydney's rendezvous with Vaughn. Anna and Vaughn discover that Vaughn has the other half of the code on a chip implanted in his body and after deciphering the code he and Anna head to Germany. They discover a bunker containing all of Vaughn's father's research on Prophet Five. Vaughn reveals that he knows Anna is not Sydney and they fight. Anna gains the upper hand until Sydney shoots her in the head, killing her. Sydney goes undercover as Anna to infiltrate Prophet Five and meets up with Peyton.

Sydney, still undercover as Anna, meets Sloane and learns that she is to seek a rose from an ancient Italian monastery. She meets up with Julian Sark in Italy and he gets them arrested to infiltrate the prison that stands where the monastery once did. Sydney discovers an elderly man who identifies himself as The Rose. The Rose gives Sydney an amulet and tells her she can't stop Prophet Five from carrying out its plans. While Peyton extracts Sark from the prison, Sloane attempts to kill Sydney, still believing she is Anna. Sydney survives the attempt but Sloane escapes with the amulet. Sydney and Vaughn return to Los Angeles, where Vaughn meets his daughter for the first time. Their happiness is short-lived, however, as Sydney gets a call from Sloane, who has figured out that she is still alive.

Sydney finally travels to Sydney, Australia as part of an APO mission to get intel on the twelve leaders of Prophet Five. She successfully captures intel on three of the twelve and returns to Los Angeles.

Shortly thereafter, Marshall and Rachel are kidnapped by Peyton and Sark respectively and Sydney encounters Sloane, who convinces her to get Marshall to help him locate a certain underground cavern. Marshall is able to pass a message to Sydney, who, working with Marshall's wife Carrie, is able to locate Marshall and Rachel and mount a rescue. Marshall and Rachel advise the team that Sloane is seeking a cave in Italy and Sydney deduces that Sloane is headed for Mount Subasio. She and Vaughn travel there and Sydney descends into the cave. There she encounters Sloane again, with the amulet she recovered earlier. Sloane fires several rounds into the floor of the cave at Sydney's feet, causing the floor to give way. Vaughn rescues Sydney and performs CPR
Cardiopulmonary resuscitation
Cardiopulmonary resuscitation is an emergency procedure which is performed in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person in cardiac arrest. It is indicated in those who are unresponsive...

 on her.

The team next tracks Sloane to Mongolia
Mongolia is a landlocked country in East and Central Asia. It is bordered by Russia to the north and China to the south, east and west. Although Mongolia does not share a border with Kazakhstan, its western-most point is only from Kazakhstan's eastern tip. Ulan Bator, the capital and largest...

 and the tomb of Milo Rambaldi
Milo Rambaldi
Milo Giacomo Rambaldi is a fictional person from the American television series Alias. The work of Rambaldi, often centuries ahead of its time and tied to prophecy, plays a central role in the show.According to Alias creator J.J...

. There Sydney encounters Sloane yet again as he implements his endgame by placing the Horizon on an altar, thus creating a red, hovering ball-shaped fluid similar to that created by the Mueller device
Mueller device
A Mueller device is a mysterious piece of technology in the US television series Alias. It usually appears as a hook-shaped armature which levitates a red-orange liquid-filled sphere. It is named for Oskar Mueller, a chemist who was believed to have invented it, though it is later revealed to have...

. Sydney disrupts Sloane's plans by grabbing the Horizon from the altar, causing the ball to collapse in a torrent of red liquid. Sark leads Jack and Vaughn into the tomb after capturing them, and Sloane shoots Jack in the chest to force Sydney and Vaughn to leave. Seeing her father severely wounded, Sydney grabs a gun and eventually shoots Sloane several times, who crashes into the puddle of Rambaldi-fluid. With Sloane seemingly dead, Sydney tries to stay with her bleeding father, but he begs her to leave him and to stop Irina. Sydney reluctantly obeys and departs for Hong Kong
Hong Kong
Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...

for a final confrontation with Irina. Jack drags himself back into the tomb and confronts Sloane, who has become immortal because of the fluid. Sloane offers to heal Jack, but Jack tells Sloane that he has caused so much pain for Sydney over the years that he will not allow him to do it again and reveals a bomb that he strapped to his body and detonates it, killing himself. The explosion causes a cave in and Sloane is trapped in there forever.

In Hong Kong, Sydney and Irina clash a final time, with Sydney seeking to stop Irina from using the Horizon to gain immortality. In the course of the fight, Irina ends up atop a glass skylight, the Horizon just inches away from her. With the glass cracking under Irina's weight, Sydney pleads with her to take her hand. Irina refuses and attempts to grab the Horizon. The glass breaks completely, causing Irina to fall to her death.

The series ends a few years into the future. Sydney and Vaughn are married and semi-retired and are now living in a beachside house on a obviously very far off island. Dixon comes to visit and is greeted by Vaughn and Sydney, who is holding their second child whom is named Jack after Sydney's father. Isabelle has found the blocks for Project Christmas and assembles them in no time, but dismantles it after Vaughn calls for her and she joins her family outside. As everyone walks down the beach, the screen cuts to black with the message: THANK YOU FOR FIVE INCREDIBLE YEARS.