Orphan Black

Orphan Black Season 1 Episodes

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Season 1 Episode Guide

Episode 1 - Season 1, Episode 1: Natural Selection

Sarah, a hustler on the run, witnesses the suicide of a stranger who looks just like her.

  

Episode 1 - Natural Selection

Sarah, an orphan outsider on the run from a lifetime of bad decisions, witnesses the suicide of a stranger who looks just like her. Sarah assumes her identity hoping that cleaning out the dead woman's bank account will solve all of her problems. Instead, the street-smart chameleon is thrust headlong into a kaleidoscopic mystery. After taking on the new identity, Sarah quickly finds herself caught in the middle of a deadly conspiracy and must race to find answers.

  

Episode 2 - Season 1, Episode 2: Instinct

With a body in her car and nowhere to turn, Sarah is forced to continue her con and earn “Beth” a second chance on the force. But with a killer on her tail, her only hope of finding answers lies with another apparent ‘identical,’ Alison.

  

Episode 2 - Instinct

With a body in her car and nowhere to turn, Sarah is forced to continue her con and earn Beth a second chance on the force. But with a killer on her tail, her only hope of finding answers lies with another twin, Alison.

     

Episode 3 - Variation Under Nature

Rocked by the revelation that she and her fellow "Orphans" are clones, Sarah just wants to get back her money and skip town. But Sarah's ruse stretches to breaking when the cops find the body she buried and put her on the case.

  

Episode 3 - Season 1, Episode 3: Variation Under Nature

Rocked by the revelation that she and her fellow "Orphans" are clones, Sarah just wants to get her hands on the money and skip town. But Sarah’s fake detective ruse stretches thin when the cops find the body she buried and assign “Beth” to the case. As Sarah closes in on the killer, the hunter becomes the hunted.

  

Episode 4 - Effects of External Conditions

Sarah realizes that the Orphans' survival is going to take more than police work. But tracking the killer threatens Sarah's long awaited reunion with her daughter Kira. With time running out, Sarah and the killer are heading for a showdown that threatens to expose her to Art and undermine her ruse as a cop.

  

Episode 4 - Season 1, Episode 4: Effects of External Conditions

Sarah realizes that the Orphans’ survival is going to take more than police work. But tracking the killer threatens Sarah’s long awaited reunion with her daughter, Kira. As Sarah gets closer to the killer, the killer gets closer to the truth – the ensuing showdown threatens to expose her ruse as a cop.

  

Episode 5 - Conditions of Existence

When terrifying evidence suggests the Orphans are part of a sinister ongoing experiment, Sarah's suspicions turn to Paul, Beth's boyfriend. But her probing inadvertently triggers Paul's own investigation, bringing him dangerously close to the truth. Meanwhile, paranoid Alison piles on a whole new level of complication.

  

Episode 5 - Season 1, Episode 5: Conditions of Existence

When terrifying evidence suggests the Orphans are part of a sinister ongoing experiment, Sarah’s suspicions turn to Paul, Beth’s boyfriend. But her probing inadvertently triggers Paul’s own investigation, bringing him dangerously close to the truth. Meanwhile, paranoid Alison piles on a whole new level of complication.

  

Episode 6 - Variations Under Domestication

Sarah's hunt for answers is interrupted by a trip to the suburbs. Alison's paranoia has boiled over, putting all the Orphans at risk. But when a party of suburbanites arrives on Alison's doorstep, it falls to Sarah to protect Alison from her neighbours' suspicions.

  

Episode 6 - Season 1, Episode 6: Variations Under Domestication

Sarah’s hunt for answers is interrupted by a trip to the suburbs. Alison’s paranoia has boiled over, putting all the Orphans at risk. But when Sarah, Alison and Beth’s worlds dangerously collide, Sarah must decide who to trust with her secret.

  

Episode 7 - Season 1, Episode 7: Parts Developed in an Unusual Manner

With Paul missing, Sarah is forced to confront the conspiracy head on. But when Paul learns Sarah has kept essential information from him, the fragile trust between them threatens to shatter. Meanwhile, Cosima grows closer to Delphine and the dangerously fascinating Dr. Leekie.

  

Episode 7 - Parts Developed in an Unusual Manner

With Paul missing, Sarah is forced to confront the conspiracy head on. But when Paul learns what's really going on, the fragile trust between him and Sarah threatens to shatter. Meanwhile, Cosima grows closer to Delphine and the dangerously fascinating Dr. Leekie.

  

Episode 8 - Season 1, Episode 8: Entangled Bank

Sarah's actions pit the Orphans against each other as she tries to plan her next move. As Paul tries desperately to cover up Sarah’s existence, Alison takes vengeance on her suspected monitor, which could cost her everything she holds dear.

  

Episode 8 - Entangled Bank

Sarah's actions pit the Orphans against each other as Sarah tries to plan her next moves. As Paul tries to cover up Sarah's existence, Alison takes vengeance on her suspected monitor, which could cost her everything she holds dear.

  

Episode 9 - Unconscious Selection

After Kira's life is threatened, Sarah is on the warpath, but Dr. Leekie makes her think twice about her plans for revenge. Meanwhile, Cosima faces the truth about Delphine, forcing her to choose sides. Now, it's up to Sarah to decide the killer's fate, but the truth about her past might end up putting all their lives in jeopardy.

  

Episode 9 - Season 1, Episode 9: Unconscious Selection

After Kira’s life is threatened, Sarah is on the warpath, but Dr. Leekie makes her think twice about her plans for revenge. Meanwhile, Cosima faces the truth about Delphine, forcing her to choose sides. Now, it’s up to Sarah to decide the killer’s fate, but the truth about where Sarah came from changes everything.

  

Episode 10 - Season 1, Episode 10: Endless Forms Most Beautiful

Sarah’s last chance to bring her nemesis back to sanity slips away as Art intervenes to get answers of his own. Meanwhile, the Orphans must decide whether to make peace with their creators, as Sarah is forced into a deadly confrontation with their enemy.

  

Episode 10 - Endless Forms Most Beautiful

Sarah's last chance to bring her nemesis back to sanity slips away as Art intervenes to get answers of his own. Meanwhile, the Orphans must decide whether to make peace with their creators, as Sarah is forced into a final, deadly confrontation with their enemy.

  

Episode 11 - Season 2, Episode 1: Nature Under Constraint and Vexed

Rachel has kidnapped Kira and Mrs. S. While eluding Rachel's thugs, Sarah must decide if she can trust Paul in order to get Kira back.

  

Episode 12 - Season 2, Episode 2: Governed By Sound Reason and True Religion

While Alison deals with Aynsley’s death, Sarah enlists Art’s help to find Kira but is shocked where the trail leads.

  

Episode 13 - Season 2, Episode 3: Mingling Its Own Nature with It

As Sarah hits the road with Felix and Kira, she is forced to turn to a ghost from her past.

  

Episode 14 - Season 2, Episode 4: Governed As It Were By Chance

Sarah comes home looking for answers, and with the help of Cosima, they begin digging into the origins of the clone experiment.

  

Episode 15 - Season 2, Episode 5: Ipsa Scientia Potestas Est.

Rachel lashes out at Sarah’s nearest and dearest. While she tries to keep her loved ones safe, a surprise visitor may derail Sarah's plans.

  

Episode 16 - Season 2, Episode 6: (To Hound) Nature in Her Wandering

Sarah joins forces with an unlikely and untrustworthy ally in hopes of finding the origins of the clone experiment.

  

Episode 17 - Season 2, Episode 7: Knowledge of Causes, and Secret Motion of Things

Alison goes into free fall when a rehab confidante betrays her and threatens to expose the truth about Aynsley’s death.

  

Episode 18 - Season 2, Episode 8: Variable and Full of Perturbation

A new player in the clone conspiracy turns up at Felix’s door. With Cosima running out of options, Sarah considers making a deal with Dyad.

  

Episode 19 - Season 2, Episode 9: Things Which Have Never Yet Been Done

Sarah becomes frantic when Cosima's health takes a down turn, but her actions have heartbreaking costs for the others.

  

Episode 20 - Season 2, Episode 10: By Means Which Have Never Yet Been Tried

The war is all but lost when Rachel’s latest plan forces Sarah to concede. Sarah uncovers a terrifying dimension to the clone conspiracy.

  

Episode 21 - Season 3, Episode 1: The Weight of This Combination

Sarah repels a potentially lethal Topside menace as she fights to locate a disappeared Helena, and the threat of Castor looms anew.

  

Episode 22 - Season 3, Episode 2: Transitory Sacrifices of Crisis

Castor pursues the Leda clones for original tissue samples; Helena, who’s pregnant and imprisoned, is examined by a mysterious new villain.

  

Episode 23 - Season 3, Episode 3: Formalized, Complex, and Costly

Leda and Castor are both on the hunt for original clone DNA, while a shocking revelation about their connection leaves the sisters reeling.

  

Episode 24 - Season 3, Episode 4: Newer Elements of Our Defence

Mark is taken down in a Prolethean shoot-out and Sarah must step in to help. Alison and Donnie come face-to-face with Jason Kellerman.

  

Episode 25 - Season 3, Episode 5: Scarred By Many Past Frustrations

Helena and her sister are reunited at the Castor camp when Sarah is captured. As Sarah suffers testing, Paul appears to hide her.

  

Episode 26 - Season 3, Episode 6: Certain Agony of the Battlefield

Paul finds the truth behind the Castor Boys’ logbooks of names, pushing him into action; Felix is desperate for info on Sarah’s whereabouts.

  

Episode 27 - Season 3, Episode 7: Community of Dreadful Fear and Hate

Alison must secure a store front in order to take her and Donnie’s business to the next level, but things don’t go according to plan.

  

Episode 28 - Season 3, Episode 8: Ruthless in Purpose, and Insidious in Method

When Rachel makes a promise to Sarah, it comes with a hefty price; Coady and Benchman scheme to track down the Castor Original.

  

Episode 29 - Season 3, Episode 9: Insolvent Phantoms of Tomorrow

Sarah, Felix and Mrs. S take a trip with the hopes of tracking down the Castor Original, however, they are not alone.

  

Episode 30 - Season 3, Episode 10: History Yet To Be Written

On the season finale, Castor and Topside force Sarah to make uneasy alliances and the results of Alison’s candidacy finally come in.

  

Episode 31 - Season 4, Episode 1: The Collapse of Nature

In the fourth season premiere, a Neolution attack destroys Sarah's refuge in Iceland and forces her to flee once again.

  

Episode 32 - Season 4, Episode 2: Transgressive Border Crossing

Sarah tracks down an elusive new ally and unearths the next aspect of the Neolution's agenda.

  

Episode 33 - Season 4, Episode 3: The Stigmata of Progress

Sarah has a traumatic encounter as she investigates a shocking discovery of Neolution's biotech.

  

Episode 34 - Season 4, Episode 4: From Instinct to Rational Control

Sarah forms an alliance with a former enemy in hopes of getting to the head of Neolution. Susan leaves Rachel to make a devastating choice.

  

Episode 35 - Season 4, Episode 5: Human Raw Material

Sarah’s day off to reconnect with Kira quickly turns into a sleuthing mission aimed squarely at discrediting Felix’s new ties. Cosima steps up with Donnie to further investigate the Neolutionist fertility research center. While Donnie bumps into an all too familiar face, Cosima makes a shocking discovery that leads her into a dangerous encounter.

  

Episode 36 - Season 4, Episode 6: The Scandal of Altruism

Sarah forges a dangerous deal that puts her family at risk. Art and Felix team up to protect naïve clone Krystal Goderitch from herself.

  

Episode 37 - Season 4, Episode 7: The Antisocialism of Sex

Sarah regresses to old habits while struggling to cope with a loss. Following in Beth’s footsteps, Sarah questions her strength to carry on.

  

Episode 38 - Season 4, Episode 8: The Redesign of Natural Objects

Alison’s loyalty to the clones is questioned. Cosima makes a final attempt to discover a cure.

  

Episode 39 - Season 4, Episode 9: The Mitigation of Competition

Sarah forms an uneasy alliance with a former nemesis in an attempt to bring down a common enemy.

  

Episode 40 - Season 4, Episode 10: From Dancing Mice to Psychopaths

On the season finale, Sarah lures a high-level Neolutionist into a trap, and sets out to bring down Neolution once and for all.

  

Episode 41 - Season 5, Episode 1: The Few Who Dare

Desperate to get off the Neolutionist island and reunite with her family, a wounded Sarah journeys into the island's interior.

  

Episode 42 - Season 5, Episode 2: Clutch of Greed

Captured by Neolution, Sarah refuses to go along with Rachel’s new regime.

  

Episode 43 - Season 5, Episode 3: Beneath Her Heart

As the sisters reel from the loss of one of their own, Sarah attempts to break the shackles Rachel has firmly placed around her family.

  

Episode 44 - Season 5, Episode 4: Let the Children & Childbearers Toil

Sarah and Mrs. S follow a lead on a Neolution defector, hoping for enough leverage to free Kira from the Dyad institute’s clutches.

  

Episode 45 - Season 5, Episode 5: Ease for Idle Millionaires

Sarah and Kira spend time at home; secrets are unlocked about Kira's gifts; Cosima joins Delphine at the mansion.

  

Episode 46 - Season 5, Episode 6: Manacled Slim Wrists

Cosima is forced into an alliance that accelerates PT Westmorland's agenda; Krystal stumbles onto a vital clue.

  

Episode 47 - Season 5, Episode 7: Gag or Throttle

As P.T. Westmorland demands a more aggressive approach with Kira, Rachel discovers a dark secret that makes her question her place within Neolution.

  

Episode 48 - Season 5, Episode 8: Guillotines Decide

Mrs. S orders the sisters to celebrate Felix's art opening; Sarah remains on edge with a nagging suspicion that S is hiding something.

  

Episode 49 - Season 5, Episode 9: One Fettered Slave

A devastating loss is suffered; Sarah learns that Helena has been kidnapped; Clone Club bands together to find Helena before her babies are born.

  

Episode 50 - Season 5, Episode 10: To Right the Wrongs of Many

Now in labour, Helena is forced to brace herself for delivery in the basement of Old Dyad; Sarah and Art struggle to protect her and end the siege.

  



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