Episode 1 : 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.
Episode 2 : Inside Orphan Black: The Collapse of Nature
Tatiana Maslany and co-creator John Fawcett on the decision to revisit one of Orphan Black?s most pivotal figures, Beth Childs. Warning: contains spoilers.
Episode 3 : Transgressive Border Crossing
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.
Episode 4 : Inside Orphan Black: Transgressive Border Crossing
The cast and crew take a closer look at how the sheep masks came to be and how an exchange between MK and Beth was brought to life. Warning: contains spoilers.
Episode 5 : The Stigmata of Progress
As Sarah reels from the shocking discovery of Neolution?s biotech, she?s desperate to find answers. Eager to assist, Mrs. S strikes an alliance with an old nemesis. 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.
Episode 6 : Inside Orphan Black: The Stigmata of Progress
Learn more about Susan Duncan and her unique relationship with the clones. Tatiana Maslany, Ari Millen and Rosemary Dunsmore weigh in on the topic. Warning: contains spoilers.
Episode 7 : 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 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.
Episode 8 : Inside Orphan Black: From Instinct to Rational Control
James Frain explains the character of Ferdinand and shares stories from the set. Warning: contains spoilers.
Episode 9 : 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. While Donnie bumps into an all too familiar face, Cosima makes a shocking discovery that leads her into a dangerous encounter.
Episode 10 : Inside Orphan Black: Human Raw Material
Actress Tatiana Maslany and creators John Fawcett and Graeme Manson talk about Krystal and whether she?ll be allowed to join Clone Club. Warning: contains spoilers.
Episode 11 : 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 naïve clone, Krystal Godderitch, from herself.
Episode 12 : Inside Orphan Black: The Scandal of Altruism
Maria Doyle Kennedy (Mrs. S) and creators John Fawcett and Graeme Manson talk about working with Alison Steadman (Kendall). Warning: contains spoilers.
Episode 13 : The Antisocialism of Sex
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.
Episode 14 : Inside Orphan Black: The Antisocialism of Sex
The cast and crew reveal the process behind creating Rachel?s mysterious surroundings. Warning: contains spoilers.
Episode 15 : 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. 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.
Episode 16 : Inside Orphan Black: The Redesign of Natural Objects
Kristian Bruun (Donnie) talks about what it was like shooting prison scenes and Lauren Hammersley (Adele) give tips on how to act drunk. Warning: contains spoilers.
Episode 17 : 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. 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.
Episode 18 : Inside Orphan Black: The Mitigation of Competition
A closer look at Helena?s journey this season. Warning: contains spoilers.
Episode 19 : 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.
Episode 20 : Inside Orphan Black: From Dancing Mice to Psychopaths
The cast and crew go in depth on the technical challenges of bringing this season to a dramatic close. Warning: contains spoilers.
Episode 101 : Season 4 Trailer
Sarah and her sestras are back for an adrenaline-pumping new season of Orphan Black.
Episode 102 : Welcome to the Trip
New to Clone Club? Get a crash course on the entire show with this series recap.
Episode 103 : OB On OB
The cast and crew offer unique insight into the series and look forward to Season 4.
Episode 104 : The Sestras Status Update
Tatiana Maslany reveals where the sestras pick up in the new season.
Episode 105 : Sneak Peek
Your first look at Season 4 of Orphan Black.