Alias Episode Guide

Sydney’s carefully separated lives begin colliding as she discovers that her employers are not what they claim. The opening season establishes the double-agent tension, uneasy father–daughter relationship and strange historical puzzle that give Alias its identity.

Episode 1: Truth Be Told

Skully’s Pick

Sydney tells her fiancé about her secret work, setting off consequences that shatter her understanding of it. A gripping introduction that makes the personal cost of espionage matter before the mythology takes over.

Episode 2: So It Begins

A stolen device leaves Sydney facing the dangerous consequences of serving two agencies. Her new arrangement becomes a practical nightmare: completing one assignment can mean creating the next crisis herself.

Episode 3: Parity

The pursuit of a centuries-old document brings Sydney up against rival operative Anna Espinosa. Their competitive chemistry adds a welcome edge to a mission where neither woman possesses the whole answer.

Episode 4: A Broken Heart

An overseas operation runs alongside Sydney’s attempts to reconnect with Jack and maintain her friendships. The telling contrast is between her confidence undercover and her uncertainty in an ordinary conversation with her father.

Episode 5: Doppelgänger

Extracting a scientist gives the CIA an opportunity to substitute its own operative. The scheme neatly complicates Sydney’s double life: now someone else’s performance could determine whether her cover survives.

Episode 6: Reckoning

Sydney enters a psychiatric facility while an internal security investigation tightens around SD-6. The institutional setting strips away the glamour, placing her among people whose minds have become operational tools.

Episode 7: Color Blind

Escaping with a troubled patient forces Sydney to confront the human damage behind an intelligence operation. It is an unsettling reminder that identifying someone as dangerous does not explain how they became that way.

Episode 8: Time Will Tell

An antique clock becomes the focus of the Rambaldi investigation as Sydney faces scrutiny at work. Historical mysteries and modern surveillance make an uncomfortable combination when the investigator is also being investigated.

Episode 9: Mea Culpa

SD-6’s mole hunt puts Sydney in immediate danger, while Dixon’s injuries make her divided loyalties painfully tangible. Undermining the organisation is one thing; watching a trusted colleague suffer is another.

Episode 10: Spirit

Jack works to protect Sydney as suspicion threatens to become a death sentence. Beneath the operational manoeuvring, the episode asks how much protection a father can offer without explaining himself.

Episode 11: The Confession

Evidence about past intelligence killings unsettles Sydney’s understanding of Jack and complicates her relationship with Vaughn. Family history stops being background information and becomes something capable of damaging present-day trust.

Episode 12: The Box (Part 1)

Armed intruders seize SD-6, leaving Sydney and Jack trying to save people inside an organisation they want dismantled. Quentin Tarantino’s McKenas Cole turns the familiar workplace into a hostile enclosure.

Episode 13: The Box (Part 2)

Skully’s Pick

Vaughn breaks orders to help Sydney and Jack end the siege. Watch directly after Part 1: the pleasure lies in seeing divided loyalties temporarily give way to a shared, urgent need to survive.

Episode 14: The Coup

A Las Vegas assignment follows the attack on SD-6 as rival organisations reposition themselves. The glittering setting restores the undercover glamour, but the balance of power underneath it is becoming increasingly unstable.

Episode 15: Page 47

Sydney uses a social visit to Sloane’s home to pursue a Rambaldi manuscript. The discomfort comes from exploiting genuine affection: Emily’s kindness makes this more troubling than another routine theft.

Episode 16: The Prophecy

An apparent connection between Sydney and Rambaldi’s work subjects her to extraordinary scrutiny. The mythology becomes personal when the agencies investigating a prediction start treating a living person as potential evidence.

Episode 17: Q&A

Sydney faces questioning about her work and possible connection to the prophecy. Earlier events acquire a different shape under interrogation, where an explanation that sounds reasonable to viewers can look deeply suspicious to officials.

Episode 18: Masquerade

A mission reconnects Sydney with former lover Noah Hicks. Familiarity offers an appealing escape from her current complications, although Alias has already supplied plenty of reasons to approach comforting reunions cautiously.

Episode 19: Snowman

Sydney’s renewed relationship with Noah unfolds alongside the hunt for a feared assassin. Romantic possibility and professional suspicion occupy the same space, making her desire for an exit increasingly difficult to separate from risk.

Episode 20: The Solution

Sydney and Vaughn arrange a deceptive sale to draw out their enemies. Their growing confidence as partners is tested by competing operations: an effective CIA trap can still be disrupted by SD-6.

Episode 21: Rendezvous

Will’s investigation moves dangerously close to Sydney’s hidden world, while Dixon questions what he has witnessed. The friendships that once offered refuge from espionage are becoming impossible to keep outside it.

Episode 22: Almost Thirty Years

Skully’s Pick

Saving Will draws Sydney and Vaughn towards a dangerous Rambaldi device, while Jack pursues his own options. The finale brings personal and operational crises together before delivering a revelation best encountered completely unprepared.

Irina Derevko’s arrival transforms an already complicated family into the season’s central battleground. Sydney must weigh the possibility of reconciliation against professional caution, while the campaign against SD-6 builds towards changes that reach far beyond another successful mission.

Episode 1: The Enemy Walks In

Sydney confronts her mother while Vaughn’s fate remains uncertain. The season opens by making its central dilemma immediate: the person Sydney most wants answers from may also be the least trustworthy source.

Episode 2: Trust Me

Irina offers cooperation, leaving Sydney and Jack divided over what her assistance might mean. Information becomes a form of emotional leverage when accepting useful intelligence also means allowing someone back into your life.

Episode 3: Cipher

Sydney’s pursuit of intelligence pits her against Sark, while Jack faces Irina after years apart. The contrast is revealing: professional adversaries can be easier to read than someone who once shared your home.

Episode 4: Dead Drop

Jack’s determination to protect Sydney from Irina influences the operation around them. His concern may be understandable, but the episode invites uncomfortable questions about where parental protection becomes manipulation.

Episode 5: The Indicator

An investigation exposes disturbing connections to Sydney’s childhood. Her abilities begin to look less straightforwardly self-made, giving the spy fantasy an unsettling question: how early did other people start shaping this life?

Episode 6: Salvation

A possible infection threatens Sydney and Vaughn, while Jack attempts to repair damaged trust. Physical danger creates an urgent deadline, but the emotional injuries are considerably less responsive to a quick solution.

Episode 7: The Counteragent

Sydney turns to Sark while searching for a way to save Vaughn. The resulting bargain highlights a recurring problem in her work: doing the right thing can require helping someone thoroughly wrong.

Episode 8: Passage (Part 1)

Sydney, Jack and Irina pose as a family during a mission involving nuclear weapons. The undercover performance is almost absurdly appropriate: convincing strangers they belong together is easier than convincing one another.

Episode 9: Passage (Part 2)

The family operation continues as Irina’s choices put her loyalties under fresh examination. Shared danger creates opportunities for connection, but Sydney still has to distinguish genuine affection from an exceptionally convincing performance.

Episode 10: The Abduction

Marshall accompanies Sydney on his first field assignment while an Alliance investigator examines Sloane’s affairs. Taking the gadget specialist beyond his desk provides warmth without removing the danger surrounding his employers.

Episode 11: A Higher Echelon

Marshall’s capture makes his technical knowledge a dangerous liability. The episode gives unusual weight to the person normally explaining the equipment, asking what happens when the support specialist becomes the operation’s central target.

Episode 12: The Getaway

An investigator’s pursuit of Jack threatens Sydney’s cover as she and Vaughn attempt a private evening together. Even a potential date becomes a security problem when neither participant can leave work behind.

Episode 13: Phase One

Skully’s Pick

A change in SD-6 leadership creates an extraordinary opportunity for Sydney and Jack. This is a major turning point: the show commits to altering its central arrangement instead of endlessly postponing the promised confrontation.

Episode 14: Double Agent

The rescue of a missing operative raises questions about whether appearances can establish identity. A particularly clear step into science-fiction territory, turning the familiar problem of deceptive behaviour into something more literal.

Episode 15: A Free Agent

Sydney considers her future while Dixon faces the personal fallout of discovering the truth. The quieter consequences matter here: escaping a lie does not automatically restore the life built around it.

Episode 16: Firebomb

Sloane demonstrates the destructive potential of a new weapon, and Vaughn needs Dixon’s help. Rambaldi’s legacy becomes harder to regard as an eccentric collecting obsession when its applications threaten ordinary lives.

Episode 17: A Dark Turn

Vaughn comes under investigation while Irina participates in an operation targeting Sloane. Sydney’s confidence in both relationships is tested by the uncomfortable possibility that intimacy has left gaps in her professional judgement.

Episode 18: Truth Takes Time

Skully’s Pick

Sydney faces Irina while Emily confronts a devastating choice about her husband. The episode’s strength is its competing loyalties: affection remains real even when it can no longer excuse what someone has done.

Episode 19: Endgame

Sydney challenges orders to rescue a captive scientist as the pursuit of Sloane becomes increasingly personal. The familiar rescue framework exposes a harder question about whose life an agency considers worth risking others for.

Episode 20: Countdown

A Rambaldi deadline increases the pressure on the team while Dixon struggles with grief. Prophecy supplies the ticking clock, but emotional volatility makes the people following it just as difficult to predict.

Episode 21: Second Double

Evidence points towards Will as an enemy operative, leaving Sydney struggling to reconcile accusation with experience. The identity storyline becomes particularly cruel when knowing someone well is no longer a reliable defence.

Episode 22: The Telling

Skully’s Pick

Will searches for the truth behind his predicament as Sydney’s confrontations become intensely personal. A bruising finale that attacks her sense of safety before ending on a development that radically changes the next season.

Sydney returns to discover that two years have vanished from her memory and other people have continued living without her. The season combines a missing-time mystery with the more painful business of finding that familiar relationships no longer offer familiar roles.

Episode 1: The Two

Sydney tries to understand her disappearance and the changes that followed it, including Vaughn’s marriage. The immediate shock is emotional rather than technological: everyone else possesses a shared history she cannot access.

Episode 2: Succession

The Covenant demands a prisoner exchange involving Sark while Sydney adjusts to the new intelligence landscape. Returning to operational competence proves easier than finding a comfortable place among the people waiting at headquarters.

Episode 3: Reunion

Sydney and Vaughn work together against a satellite threat. Their professional instincts remain familiar, which only sharpens the awkwardness of a partnership whose personal boundaries have been redrawn during Sydney’s absence.

Episode 4: A Missing Link

A criminal associate recognises Sydney from her missing years. Undercover work becomes unusually precarious when she must convincingly inhabit an identity that other people remember more clearly than she does.

Episode 5: Repercussions

A dangerous operation leaves Vaughn injured and brings Sydney into conflict with Lauren. The aftermath makes the season’s romantic tension operationally consequential, rather than something that can wait until the mission is finished.

Episode 6: The Nemesis

A familiar enemy resurfaces through the Covenant, connecting present threats to Sydney’s unresolved past. For someone trying to rebuild her life, discovering which old dangers survived is hardly a reassuring form of continuity.

Episode 7: Prelude

Jack attempts to conceal evidence linking Sydney to a killing during her missing years. Protecting her means withholding information again, reopening the question of whether his secrecy safeguards her or keeps her dependent.

Episode 8: Breaking Point

Sydney’s detention prompts an unlikely alliance among those determined to help her. Institutional authority becomes the immediate threat, forcing characters with incompatible motives to find enough common ground for a rescue.

Episode 9: Conscious

An experimental procedure takes Sydney into the fractured landscape of her memory. David Cronenberg’s guest appearance suits an episode where the investigation becomes psychological and familiar faces no longer guarantee a stable reality.

Episode 10: Remnants

Skully’s Pick

Sydney draws Will out of witness protection to help investigate her missing past. His return restores a different kind of intimacy: friendship with someone who knew her beyond agency briefings and romantic complications.

Episode 11: Full Disclosure

Skully’s Pick

Sydney finally receives substantial answers about the two years she cannot remember. Essential viewing for the season’s central mystery, and a welcome opportunity to reassess earlier clues with more than speculation available.

Episode 12: Crossings

A mission leaves Sydney and Vaughn in danger in North Korea, while Jack receives an offer of help. The rescue possibility comes with conditions, making assistance from extended family an alarming proposition.

Episode 13: After Six

A threat to the Covenant’s leadership creates an opportunity involving a formidable security system. The mission’s technical challenge runs alongside another kind of infiltration: ambitious insiders manoeuvring for advantage within their own organisation.

Episode 14: Blowback

An operation unfolds from competing perspectives, exposing the hidden actions behind what Sydney and Vaughn experience. The structure makes secrecy visible to viewers while leaving the characters trapped inside their incomplete understanding.

Episode 15: Façade

Skully’s Pick

Sydney and Vaughn construct an elaborate deception around a bomb-maker played by Ricky Gervais. An inventive pressure-cooker episode in which the cover story becomes a physical environment—and still cannot guarantee control.

Episode 16: Taken

The kidnapping of Dixon’s children gives the Covenant direct leverage over him. It is a harsh reversal for a character often relied upon for steadiness, placing parental desperation inside an already ruthless negotiation.

Episode 17: The Frame

The search for Rambaldi artefacts continues while Jack’s suspicions about Lauren become harder to dismiss. Spotting inconsistencies is only the beginning; persuading someone emotionally invested in the opposite conclusion is another matter.

Episode 18: Unveiled

Sydney’s concerns about Lauren intensify, but Vaughn struggles to accept their implications. The episode builds tension around resistance to an answer: compelling evidence does not necessarily arrive before someone is ready to believe it.

Episode 19: Hourglass

Vaughn must preserve the appearance of normal married life while Sydney investigates the identity of the Passenger. Domestic conversation and ancient prophecy become parallel exercises in interpreting words that conceal more than they reveal.

Episode 20: Blood Ties

Sydney needs Sloane’s help to find Nadia, while Vaughn falls into enemy hands. Newly discovered family connections complicate the usual divisions between allies and enemies, particularly when Sloane has something personal at stake.

Episode 21: Legacy

The pursuit of Sloane and Nadia gathers pace as Vaughn becomes increasingly driven by revenge. His determination offers a useful contrast with Sydney’s search: both are personal, but they are pulling towards different outcomes.

Episode 22: Resurrection

An attack on the CIA drives Sydney towards a final confrontation with Lauren and further questions about Jack. The season closes one immediate conflict without allowing Sydney’s uneasy relationship with family secrets to settle.

A new black-ops unit brings familiar faces together under an uncomfortable chain of command. The early episodes favour individual missions, giving the team room to interact before family secrets and Rambaldi’s legacy pull the season towards a larger confrontation.

Episode 1: Authorized Personnel Only (Part 1)

Sydney joins a secret CIA unit and discovers an unwelcome surprise in its leadership. The new workplace promises operational freedom, but its personnel make a genuinely fresh start look extremely unlikely.

Episode 2: Authorized Personnel Only (Part 2)

Nadia becomes involved in Sydney’s dangerous assignment as the new team begins taking shape. Their emerging sisterhood provides a different emotional centre, complicated from the outset by the fathers standing behind them.

Episode 3: The Awful Truth

A mission involving a code-breaking device unfolds alongside difficult questions about Irina’s fate. Sydney and Jack again face the temptation to manage another person’s grief by deciding which truths they should receive.

Episode 4: Ice

Sydney and Vaughn adopt contrasting covers while investigating a biological weapon. The assignment depends on gaining personal confidence, offering a reminder that listening convincingly can be as important as fighting efficiently.

Episode 5: Welcome to Liberty Village

Skully’s Pick

Sydney and Vaughn pose as a married couple inside a suspiciously tidy suburban community. Domestic role-play becomes an unsettling assignment, with the apparent normality offering both romantic temptation and an increasingly sinister sense of confinement.

Episode 6: Nocturne

An infection distorts Sydney’s perception, making familiar people appear threatening. The danger comes from losing the judgement her work depends upon: exceptional combat skills become a liability when she cannot reliably identify an enemy.

Episode 7: Détente

Sydney and Nadia go undercover together while tensions surrounding Sloane affect their relationship. The mission offers a chance to enjoy their contrasting personalities before reminding us that shared parentage does not produce identical loyalties.

Episode 8: Echoes

Anna Espinosa’s return places Nadia in danger and rekindles an old rivalry. Bringing Sydney’s sister into that conflict changes its emotional balance: competitive hostility now has a particularly vulnerable pressure point.

Episode 9: A Man of His Word

Sark offers assistance in the pursuit of Anna, but cooperation comes with demands. His usefulness is never the same as trustworthiness, leaving the team to decide how much control they can afford to surrender.

Episode 10: The Index

Sydney suspects Sloane of renewed dealings with the Alliance, creating friction with Nadia. Their different histories with him produce an understandable divide: one sees a dangerous pattern where the other hopes for change.

Episode 11: The Road Home

An operation in Germany pulls an ordinary civilian into Sydney’s dangerous world. Seeing events through someone without spy training restores a sense of how frightening her supposedly routine working day actually is.

Episode 12: The Orphan

Nadia’s past becomes relevant to a current assignment. Giving her history room to emerge helps establish her as more than Sydney’s newly discovered relative, with experiences and loyalties that predate the Bristow household.

Episode 13: Tuesday

Skully’s Pick

Sydney is buried alive, and Marshall becomes her unexpected best hope of rescue. A terrific change of emphasis: his anxiety remains part of the character, but it does not prevent ingenuity, courage or decisive action.

Episode 14: Nightingale

Vaughn follows information about his father, drawing Sydney into an unauthorised investigation. The search gives him a version of her recurring dilemma: professional caution is much harder to maintain when family history is involved.

Episode 15: Pandora

Vaughn’s investigation pushes him towards increasingly compromising choices. The episode asks how far the promise of an answer can pull a capable operative away from the judgement that normally keeps him alive.

Episode 16: Another Mister Sloane

A man apparently sharing Sloane’s identity and knowledge draws the real Sloane into the investigation. The unsettling idea is not simply duplication, but whether another person can reproduce the particular machinery of his obsession.

Episode 17: A Clean Conscience

Nadia welcomes a former caregiver into her life after an apparent attack. Bringing someone from her childhood into Sydney’s home creates an intimate vulnerability that no amount of workplace security can easily address.

Episode 18: Mirage

Skully’s Pick

Jack’s worsening illness forces Sydney to enter a painful reconstruction of his past. An unusually moving use of the show’s central device: adopting another identity becomes a means of understanding her father, not merely deceiving a target.

Episode 19: In Dreams…

The investigation into Sloane’s double exposes memories tied to Sloane’s own fixation on Rambaldi. His grief gives that fixation a more human origin without making its consequences any easier to excuse.

Episode 20: The Descent

A major theft accelerates the threat surrounding the team as Sloane’s old obsession reasserts itself. Previously separate strands begin converging, making the household’s personal vulnerabilities inseparable from the larger operation.

Episode 21: Search and Rescue

A mission to recover Irina becomes crucial to stopping Elena Derevko. The Bristows must again work with someone whose knowledge is indispensable, regardless of everything that makes accepting her help so difficult.

Episode 22: Before the Flood

The team enters a city overwhelmed by a catastrophic Rambaldi event. The finale takes the mythology to a much larger scale, then returns to the show’s favourite danger zone: trusting someone close to Sydney.

Sydney faces pregnancy, upheaval and a conspiracy known as Prophet Five. New operatives alter the team’s balance, while returning characters reconnect the final season with its beginnings. The central question becomes whether Sydney can prevent her child from inheriting the same dangerous life.

Episode 1: Prophet Five

Questions about Vaughn’s identity lead Sydney towards another hidden organisation as she discovers she is pregnant. The premiere makes the possibility of a shared future feel newly tangible—and immediately vulnerable.

Episode 2: …1…

Sydney pursues the elusive Renée Rienne while Thomas Grace joins the team. Rebuilding operational momentum offers little comfort when the investigation is bound up with upheaval she has barely begun to process.

Episode 3: The Shed

The team encounters Rachel Gibson, whose understanding of her employers resembles Sydney’s early experience. That parallel gives Sydney a different role: she can now recognise someone else standing inside the same carefully constructed lie.

Episode 4: Mockingbird

Rachel returns to her former organisation as a double agent, with Sydney guiding her. Reversing the mentor relationship lets the series revisit its original premise through someone who remembers exactly how terrifying it was.

Episode 5: Out of the Box

A mystery involving Renée and a cryogenic container develops into a siege. The confined danger gives the new alliance a practical test before anyone has had much opportunity to establish personal trust.

Episode 6: Solo

Rachel undertakes her first solo field assignment while Sydney adjusts to mentoring from a distance. Watching someone else face the danger creates a different strain from accepting it yourself, particularly when you know the risks intimately.

Episode 7: Fait Accompli

The pursuit of Gordon Dean promises information about the organisation behind him. Each apparent breakthrough raises the same operational problem: capturing a visible participant does not necessarily expose the people providing protection above them.

Episode 8: Bob

Rachel’s assignment brings her into unexpected contact with Sark. His charm adds comic awkwardness to a dangerous encounter, while her inexperience creates uncertainty that the established team’s usual familiarity with him would remove.

Episode 9: The Horizon

Skully’s Pick

Sydney’s captors manipulate her memories in search of information, drawing her back into moments with Vaughn. The interrogation is especially invasive because it turns emotional refuge into something an enemy can enter and exploit.

Episode 10: S.O.S.

A message from Sydney sends Jack and the team racing to find her, with help from Weiss. The rescue supplies a welcome collective purpose while questions about the newer operatives continue beneath it.

Episode 11: Maternal Instinct

Irina reappears as Sydney approaches childbirth under dangerous circumstances. Three generations become part of the same problem: Sydney must decide what help to accept from a mother whose affection has never guaranteed safety.

Episode 12: There’s Only One Sydney Bristow

Skully’s Pick

Will’s abduction by Anna Espinosa pulls Sydney back into action during maternity leave. Returning friend and returning adversary make an effective pairing, reconnecting her new responsibilities with relationships established near the beginning.

Episode 13: 30 Seconds

A possible treatment for Nadia forces Sloane towards a defining choice. The episode places his competing attachments under direct pressure, asking whether paternal love can genuinely displace the obsession that has shaped his life.

Episode 14: I See Dead People

A discovery connected to Renée provides a new lead involving Vaughn, while Anna remains an active threat. The investigation brings identity and memory back together as the remaining pieces of the conspiracy begin aligning.

Episode 15: No Hard Feelings

Sydney works alongside Sark while pursuing another part of Rambaldi’s legacy. Their temporary partnership captures an enduring feature of her profession: effective cooperation sometimes depends on a clear understanding that neither side is trustworthy.

Episode 16: Reprisal

Sloane targets Marshall and Rachel as the final pursuit of Rambaldi’s secrets accelerates. Watch this and the finale together if possible: it is the opening movement of the conclusion, with little room left for recovery.

Episode 17: All the Time in the World

Skully’s Pick

Sydney and Jack confront Sloane and Irina as the series reaches its end. The mythology provides the final struggle, but the more meaningful resolution concerns family, sacrifice and Sydney’s chance to choose a different future.

Skully’s final word: The aliases change, the agencies multiply and Rambaldi leaves behind an unreasonable amount of paperwork. What keeps Alias worth following is Sydney’s effort to build an honest life inside a profession that continually demands the opposite.