The Best Episodes of Orphan Black Season 4

Episode Rankings

1. #1 Fan Favorite
   

   7.5/10(24 votes)

   #1 - The Collapse of Nature

   S4:E14/14/2016

   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.

   Director:John Fawcett

   Writer:Graeme Manson

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   Director:John Fawcett

   Writer:Graeme Manson
2. 

   7.1/10(23 votes)

   #2 - Transgressive Border Crossing

   S4:E24/21/2016

   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.

   Director:John Fawcett

   Writer:Russ Cochrane

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   Director:John Fawcett

   Writer:Russ Cochrane
3. 

   7.7/10(20 votes)

   #3 - The Stigmata of Progress

   S4:E34/28/2016

   As Sarah reels from the shocking discovery of Neolution’s biotech, she’s desperate to find answers. Rachel receives a visit from her keeper and takes a fraught step forward towards recovery. Meanwhile, Helena is mistaken for “Mrs. Hendrix” when she answers a visit from suspicious visitors.

   Director:Ken Girotti

   Writer:Aubrey Nealon

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   Director:Ken Girotti

   Writer:Aubrey Nealon
4. 

   7.3/10(21 votes)

   #4 - From Instinct to Rational Control

   S4:E45/5/2016

   Sarah realizes her goals have aligned with her once enemy and forms a precarious alliance in hopes of getting to the head of Neolution. Meanwhile, on her end, Alison dispatches Felix and Donnie to infiltrate a Neolution fertility clinic that Beth investigated. Back at the lab, Cosima and Scott receive a revolting delivery from Alison. As Rachel grows closer to Charlotte, Susan Duncan leaves a devastating decision in her hands.

   Director:Peter Stebbings

   Writer:Alex Levine

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   Director:Peter Stebbings

   Writer:Alex Levine
5. 

   7.7/10(20 votes)

   #5 - Human Raw Material

   S4:E55/12/2016

   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.

   Director:David Wellington

   Writer:Kate Miles Melville

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   Director:David Wellington

   Writer:Kate Miles Melville
6. 

   8.0/10(23 votes)

   #6 - The Scandal of Altruism

   S4:E65/19/2016

   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.

   Director:Grant Harvey

   Writer:Chris Roberts

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   Director:Grant Harvey

   Writer:Chris Roberts
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7. 

   7.1/10(22 votes)

   #7 - The Antisocialism of Sex

   S4:E75/26/2016

   Sarah regresses to old habits while struggling to cope with the consequences of her decisions —reconnecting with Beth on a dark night of the soul. Back at the lab, Cosima, haunted by vicious memories and news of Delphine, attempts a dangerous Hail Mary to find a cure. At the Hendrixes, Alison is more determined than ever to create normalcy for her kids. As she forges ahead with a birthday party, Donnie is caught in the Neolution crosshairs.

   Director:David Frazee

   Writers:Graeme Manson, Nikolijne Troubetzkoy

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   Director:David Frazee

   Writers:Graeme Manson, Nikolijne Troubetzkoy
8. 

   7.2/10(20 votes)

   #8 - The Redesign of Natural Objects

   S4:E86/2/2016

   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.

   Director:Aaron Morton

   Writer:Peter Mohan

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   Director:Aaron Morton

   Writer:Peter Mohan
9. 

   7.7/10(18 votes)

   #9 - The Mitigation of Competition

   S4:E96/9/2016

   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.

   Director:David Frazee

   Writer:Alex Levine

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   Director:David Frazee

   Writer:Alex Levine
10. 

    7.4/10(22 votes)

    #10 - From Dancing Mice to Psychopaths

    S4:E106/16/2016

    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.

    Director:John Fawcett

    Writer:Graeme Manson

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    Director:John Fawcett

    Writer:Graeme Manson