DramaSci-Fi & FantasySpaceBBC America

The Best Episodes of Orphan Black Season 4

Every episode of Orphan Black Season 4 ranked from best to worst. Discover the Best Episodes of Orphan Black Season 4!

Binge this in 7h 21m·Peaking at 9.2/10
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons5

All12345

Episode Rankings

  1. #1 Fan Favorite
    Orphan Black Season 4 Episode 6 - The Scandal of Altruism
    9.2/10(2008 votes)

    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.

    Director:Grant Harvey
    Writer:Chris Roberts

    Be the first to start the conversation for this episode

  2. Orphan Black Season 4 Episode 1 - The Collapse of Nature
    8.6/10(1636 votes)

    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.

    Director:John Fawcett
    Writer:Graeme Manson

    Be the first to start the conversation for this episode

  3. Orphan Black Season 4 Episode 10 - From Dancing Mice to Psychopaths
    8.6/10(1432 votes)

    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.

    Director:John Fawcett
    Writer:Graeme Manson

    Be the first to start the conversation for this episode

  4. Orphan Black Season 4 Episode 9 - The Mitigation of Competition
    8.5/10(1258 votes)

    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.

    Director:David Frazee
    Writer:Alex Levine

    Be the first to start the conversation for this episode

  5. Orphan Black Season 4 Episode 2 - Transgressive Border Crossing
    8.3/10(1341 votes)

    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.

    Director:John Fawcett
    Writer:Russ Cochrane

    Be the first to start the conversation for this episode

  6. Orphan Black Season 4 Episode 5 - Human Raw Material
    8.3/10(1277 votes)

    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.

    Director:David Wellington
    Writer:Kate Miles Melville

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 BEST Episodes of Orphan Black

    READ
  7. Orphan Black Season 4 Episode 8 - The Redesign of Natural Objects
    8.3/10(1220 votes)

    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.

    Director:Aaron Morton
    Writer:Peter Mohan

    Be the first to start the conversation for this episode

  8. Orphan Black Season 4 Episode 4 - From Instinct to Rational Control
    8.2/10(1238 votes)

    S4:E4

    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

    Be the first to start the conversation for this episode

  9. Orphan Black Season 4 Episode 3 - The Stigmata of Progress
    8.1/10(1246 votes)

    S4:E3

    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

    Be the first to start the conversation for this episode

  10. Orphan Black Season 4 Episode 7 - The Antisocialism of Sex
    7.9/10(1302 votes)

    S4:E7

    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

    Be the first to start the conversation for this episode

Season 4 Ratings Summary

"The Scandal of Altruism" is the best rated episode of Orphan Black season 4. It scored 9.2/10 from 2,008 votes. Directed by Grant Harvey and written by Chris Roberts, it aired on May 19, 2016. This episode is rated 0.6 points higher than the second-best, "The Collapse of Nature".