Orphan Black

S4, E1

The Collapse of Nature

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.

Full Episode

Original Air Date: April 14, 2016

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Tatiana Maslany describes developing a new clone.

Orphan Black: 'You're Hollow, Paul'

Beth and Paul assess their relationship.

M.K. Comforts Beth

Beth and M.K. have a heart-to-heart in M.K.'s trailer.

Beth and Art Kiss

The partners take their relationship to the next level.

Going Inside the Beth Episode

Orphan Black's co-creator, John Fawcett, explains how the Season 4 premiere reset the series.

S4, E1

The Collapse of Nature

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.

S4, E2

Transgressive Border Crossing

After evading a Neolution attack in Iceland, Sarah returns home to track down an elusive new ally. She follows breadcrumbs and uncovers the next facet of Neolution's agenda.

S4, E3

The Stigmata of Progress

As Sarah reels from the shocking discovery of Neolution's biotech, she's desperate to find answers. Always impulsive, she follows a lead into a harrowing encounter that requires the help of a reluctant new player.

S4, E4

From Instinct to Rational Control

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.

S4, E5

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.

S4, E6

The Scandal of Altruism

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 Krystal Godderitch, from herself.

S4, E7

The Antisocialism of Sex

Sarah regresses to old habits while struggling to cope with the consequences of her decisions. Back at the lab, Cosima, haunted by vicious memories and news of Delphine, attempts a dangerous Hail Mary.

S4, E8

The Redesign of Natural Objects

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

S4, E9

The Mitigation of Competition

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.

S4, E10

From Dancing Mice to Psychopaths

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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