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Season guide

Orphan Black: Season 1

10 episodes Premiered Mar 30, 2013 Updated Jul 29, 2026

Orphan Black is a Canadian science fiction television series that premiered on March 30, 2013, in Canada on Space. The series was created by Graeme Manson. The show revolves around a streetwise individual who assumes the identity of a dead woman and uncovers a secret: she is a clone. As she searches for answers, she discovers more genetically identical individuals, who are being targeted and killed off one by one. Th

Season overview

Orphan Black is a Canadian science fiction television series that premiered on March 30, 2013, in Canada on Space. The series was created by Graeme Manson. The show revolves around a streetwise individual who assumes the identity of a dead woman and uncovers a secret: she is a clone. As she searches for answers, she discovers more genetically identical individuals, who are being targeted and killed off one by one. The series is a thriller mystery that explores the consequences of this earth-shattering secret.

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Season 1 Episodes

Episode Guide

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Season 1: Filler vs. Essential Canon

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Mytharc (5): Crucial lore & season climaxes
Core (5): Character development & subplots
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S1·E1 Mytharc

Natural Selection

Mar 30, 2013 · 45 min

Sarah, a streetwise hustler 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 cleani

S1·E2 Core

Instinct

Apr 6, 2013 · 45 min

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 findin

S1·E3 Core

Variation Under Nature

Apr 13, 2013 · 45 min

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

S1·E4 Mytharc

Effects of External Conditions

Apr 20, 2013 · 44 min

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 g

S1·E5 Core

Conditions of Existence

Apr 27, 2013 · 45 min

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 P

S1·E6 Core

Variations Under Domestication

May 4, 2013 · 45 min

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 dange

S1·E7 Mytharc

Parts Developed in an Unusual Manner

May 11, 2013 · 44 min

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

S1·E8 Core

Entangled Bank

May 18, 2013 · 44 min

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 suspec

S1·E9 Mytharc

Unconscious Selection

May 25, 2013 · 45 min

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, forcin

S1·E10 Mytharc

Endless Forms Most Beautiful

Jun 1, 2013 · 44 min

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