Orphan Black

The Best Episodes of Orphan Black

Genres:DramaSci-Fi & Fantasy

Every episode of Orphan Black ranked from best to worst. Let's dive into the Best Episodes of Orphan Black!

A streetwise hustler is pulled into a compelling conspiracy after witnessing the suicide of a girl who looks just like her.
Episodes
50
Avg. Rating
8.3
S1
S2
S3
S4
E1
E2
E3
8.1
8.4
8.1
8.6
8.0
8.2
7.8
8.3
8.1
8.0
7.9
8.1

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  1. 9.2/10(1.9k votes)

    #1 - The Scandal of Altruism

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    S4:E6

    When Cosima admits doubts about finding a cure in time to save her life, Sarah makes a lone decision that exposes Kendall to those she’s spent years hiding from. Meanwhile, Art and Felix team up to protect naïve clone, Krystal Godderitch, from herself.

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  2. 9.1/10(2.1k votes)

    #2 - Certain Agony of the Battlefield

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    S3:E6

    Paul digs and finds the ugly truth behind the Castor Boys’ logbooks of names, pushing him into action. Meanwhile, Felix is desperate for info on Sarah’s whereabouts, and presses the still-ailing Rachel for any shred of a lead. In order for Donnie and Alison to take their money-making endeavor to the “next level” she must introduce Jason Kellerman to her unique business plan.

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  3. 9.1/10(1.5k votes)

    #3 - To Right the Wrongs of Many

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    S5:E10

    With Helena forced to take shelter behind enemy lines, it’s a bloody last stand for survival as Sarah and Art struggle to protect her, and end the siege on the sestras once and for all.

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  4. 9.0/10(1.6k votes)

    #4 - History Yet to Be Written

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    S3:E10

    Castor and Topside force Sarah to make uneasy alliances. But there is some rest for the wicked, when Donnie gives Helena an unexpected ‘gift’, and the results of Alison’s candidacy finally come in. Even as team Leda takes a moment to breathe, change is afoot and a life hangs in the balance.

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  5. 9.0/10(1.2k votes)

    #5 - Guillotines Decide

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    S5:E8

    Mrs. S orders the sisters to take a night off from sleuthing to celebrate Felix's art opening. But while Felix attempts to impress a famous gallerist with the help of his sestras, Sarah remains on edge with a nagging suspicion that S is hiding something. Meanwhile, wounded and desperate, Rachel reunites with an old ally, but their plans for revenge on Neolution put Clone Club in the line of fire.

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  6. 8.9/10(2.2k votes)

    #6 - Endless Forms Most Beautiful

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    S1:E10

    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.

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    The 20 WORST Episodes of Orphan Black

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  8. 8.9/10(1.9k votes)

    #7 - By Means Which Have Never Yet Been Tried

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    S2:E10

    The war with Dyad is all but lost when Rachel’s latest ploy forces a broken Sarah to concede. The Clone Club springs into action, uniting in a reckless gambit to save Sarah. As they fight to gain their freedom, Sarah encounters a new ally and uncovers a terrifying new dimension to the conspiracy.

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  9. 8.8/10(1.2k votes)

    #8 - Gag or Throttle

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    S5:E7

    As P. T. Westmorland demands a more aggressive action on Kira, and Sarah fights to save her daughter, Rachel discovers a dark secret that makes her question her place within Neolution. Meanwhile, Cosima has returned with a vital clue to Westmorland's true identity.

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  10. 8.7/10(1.1k votes)

    #9 - One Fettered Slave

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    S5:E9

    A devastating loss is eclipsed when word reaches Sarah that Helena has been kidnapped. Clone Club bands together in a race against time, determined to find her before she has her babies. And with time running out, Sarah is forced into action in a last-ditch effort to save her sestra.

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    Director:David Frazee
  11. 8.6/10(2.0k votes)

    #10 - Unconscious Selection

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    S1:E9

    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.

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    Director:T.J. Scott
  12. 8.6/10(1.6k votes)

    #11 - Knowledge of Causes, and Secret Motion of Things

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    S2:E7

    When a rehab confidante betrays Alison and threatens to expose the truth about Aynsley’s death, she goes into free fall on the eve of Family Day. With Donnie and the kids set to visit, it’s all clones on deck to contain the fallout.

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    Director:Ken Girotti
  13. 8.6/10(1.5k votes)

    #12 - The Collapse of Nature

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    S4:E1

    After two months of respite, Sarah’s hard-won refuge in Iceland is shattered by a Neolution attack. Once again forced to flee, she realizes no matter how far her family runs it will never be far enough.

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  14. 8.6/10(1.3k votes)

    #13 - From Dancing Mice to Psychopaths

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    S4:E10

    When communication with Cosima is cut off and Neolution appears to be within striking distance, Sarah's alliance with Rachel goes out the window. Sarah lures a high-level Neolutionist into a trap, and sets out to bring down Neolution once and for all.

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  15. 8.5/10(1.5k votes)

    #14 - Things Which Have Never Yet Been Done

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    S2:E9

    Cosima takes a turn for the worse, forcing Sarah to take desperate action which results in tragic consequences for those she loves. The Proletheans set their ultimate plan in motion, while Alison and Donnie tangle with the law.

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    Director:T.J. Scott
  16. 8.5/10(1.3k votes)

    #15 - Ruthless in Purpose, and Insidious in Method

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    S3:E8

    When Rachel makes a promise to Sarah, it comes with a hefty price. Meanwhile, Helena and Gracie work with the Hendrixes, and Donnie takes Kellerman to task. Over at Castor, Coady and Benchman scheme to track down the Castor Original, and Rudy descends on DYAD for a much needed asset.

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  17. 8.5/10(1.3k votes)

    #16 - Insolvent Phantom of Tomorrow

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    S3:E9

    Sarah, Felix, and Mrs. S are in London to track down the Castor Original, but their enemies are not far behind.

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  18. 8.5/10(1.2k votes)

    #17 - The Mitigation of Competition

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    S4:E9

    With Susan Duncan deposed, Sarah finds herself in the same position as Rachel — under the heel of a new HBIC — causing the archenemies to come together for the greater good. Cosima and Susan butt heads on the ethical implications of human experiments. Meanwhile, when the Hendrixes' legal counsel, Adele, further investigates Donnie’s case, she begins to suspect Felix is keeping deep secrets. Helena’s arrival forces Felix to make a difficult decision.

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    Director:David Frazee
  19. 8.4/10(2.1k votes)

    #18 - Variations Under Domestication

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    S1:E6

    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.

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    Director:John Fawcett
  20. 8.4/10(2.0k votes)

    #19 - Entangled Bank

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    S1:E8

    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.

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    Director:Ken Girotti
  21. 8.4/10(1.9k votes)

    #20 - Nature Under Constraint and Vexed

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    S2:E1

    Sarah is out of options, on the run, and pursued by deadly adversaries. Desperate to find her daughter Kira, Sarah suspects ruthless pro-clone Rachel is behind her daughter’s disappearance and sparks an all out war against her. Alison and Donnie attend the funeral of her fallen friend, Aynsley, causing Alison to sink into guilt and despair. Cosima is faced with a perplexing decision that may have dire consequences.

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  22. 8.4/10(1.7k votes)

    #21 - Governed As It Were by Chance

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    S2:E4

    Sarah comes home looking for answers, and with the help of Cosima, they begin digging into the origins of the clone experiment. The hunt for answers takes her right into the belly of the beast, but getting out could cost her more than she knows.

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  23. 8.3/10(1.4k votes)

    #22 - Community of Dreadful Fear and Hate

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    S3:E7

    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 when her mother, Connie, proves to be a major hindrance. Cosima is facing familiar health issues and calls upon beleaguered Alison for a favor. But with Alison working to save an imperiled Donnie from the merciless hands of a drug lord, it’s Cosima who ends up doing a favor. An unassuming Scott gets closer to the greatest discovery of all, when he sits down with beleaguered clone Rachel.

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    Director:Ken Girotti
  24. 8.3/10(1.2k votes)

    #23 - Transgressive Border Crossing

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    S4:E2

    After evading a Neolution attack in Iceland, Sarah returns home to track down an elusive new ally. As Cosima struggles with Delphine’s disappearance, Alison and Donnie host a pregnant and ever-hungry Helena. Meanwhile Felix, feeling like an outsider, embarks on his own journey of self-discovery.

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  25. 8.3/10(1.2k votes)

    #24 - Human Raw Material

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    S4:E5

    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.

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  26. 8.3/10(1.1k votes)

    #25 - The Redesign of Natural Objects

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    S4:E8

    As Alison is terrified by Neolution threats made against Donnie, Sarah and Mrs. S question her loyalty to her sisters. While Sarah is distracted, Siobhan sneaks out to seek vengeance. Meanwhile, Cosima and Susan Duncan work together in a final attempt to discover a cure.

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    Director:Aaron Morton

Best Episodes Summary

"The Scandal of Altruism" is the best rated episode of "Orphan Black". It scored 9.2/10 based on 1897 votes. Directed by Grant Harvey and written by Chris Roberts, it aired on 5/19/2016. This episode scored 0.1 points higher than the second highest rated, "Certain Agony of the Battlefield".