The BEST episodes of Orphan Black
Every episode of Orphan Black ever, ranked from best to worst by thousands of votes from fans of the show. 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.
#1 - To Right the Wrongs of Many
Season 5 - Episode 10 - Aired 8/12/2017
In the series finale, Helena prepares to deliver in the basement of Old Dyad while Sarah and Art fight to protect her from Neolution.
#2 - Endless Forms Most Beautiful
Season 1 - Episode 10 - Aired 6/1/2013
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.
#3 - History Yet to Be Written
Season 3 - Episode 10 - Aired 6/20/2015
As Clone Club races towards the truth, Castor and Topside force Sarah to make uneasy alliances. Meanwhile, Kendall may be the key to stop Castor; the sisters appear to be thwarting their most dangerous foe.
#4 - The Scandal of Altruism
Season 4 - Episode 6 - Aired 5/19/2016
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.
#5 - Unconscious Selection
Season 1 - Episode 9 - Aired 5/25/2013
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.
#6 - Guillotines Decide
Season 5 - Episode 8 - Aired 7/29/2017
The sisters take a night off to celebrate Felix's art opening. Wounded and desperate, Rachel reunites with an old ally, but their plans for revenge on Neolution put clone club in the line of fire.
#7 - By Means Which Have Never Yet Been Tried
Season 2 - Episode 10 - Aired 6/21/2014
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.
#8 - Gag or Throttle
Season 5 - Episode 7 - Aired 7/22/2017
As P.T. Westmorland demands a more aggressive approach with Kira, Rachel discovers a dark secret that makes her question her place within Neolution. Sarah fights to save her daughter.
#9 - The Mitigation of Competition
Season 4 - Episode 9 - Aired 6/9/2016
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.
#10 - From Dancing Mice to Psychopaths
Season 4 - Episode 10 - Aired 6/16/2016
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.
#11 - Entangled Bank
Season 1 - Episode 8 - Aired 5/18/2013
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.
#12 - Conditions of Existence
Season 1 - Episode 5 - Aired 4/27/2013
When terrifying evidence suggests the Orphans are part of a sinister ongoing experiment, Sarah’s suspicions turn to Paul, Beth’s boyfriend. But her probing inadvertently triggers Paul’s own investigation, bringing him dangerously close to the truth. Meanwhile, paranoid Alison piles on a whole new level of complication.
#13 - Certain Agony of the Battlefield
Season 3 - Episode 6 - Aired 5/23/2015
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.
#14 - Variations Under Domestication
Season 1 - Episode 6 - Aired 5/4/2013
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.
#15 - Parts Developed in an Unusual Manner
Season 1 - Episode 7 - Aired 5/11/2013
With Paul missing, Sarah is forced to confront the conspiracy head on. But when Paul learns Sarah has kept essential information from him, the fragile trust between them threatens to shatter. Meanwhile, Cosima grows closer to Delphine and the dangerously fascinating Dr. Leekie.
#16 - Insolvent Phantom of Tomorrow
Season 3 - Episode 9 - Aired 6/13/2015
Sarah, Felix and Mrs. S take a trip with the hopes of tracking down the Castor Original. But they are not alone. Back home, Donnie tries to save the family business when Pouchy defects, but it is Helena who manages to secure a “full refund.” Meanwhile, Cosima becomes suspicious of Shay, and Delphine takes the matter into her own hands. But nothing will ever be the same again when Leda finally finds what they’ve been looking for.
#17 - Transgressive Border Crossing
Season 4 - Episode 2 - Aired 4/21/2016
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.
#18 - One Fettered Slave
Season 5 - Episode 9 - Aired 8/5/2017
As Sarah reels from a painful loss, she's dealt another blow: Helena has been kidnapped. The sisters band together in a race against time, determined to find Helena before an unmasked and unhinged John Mathieson lays hands on her babies.
#19 - Knowledge of Causes, and Secret Motion of Things
Season 2 - Episode 7 - Aired 5/31/2014
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.
#20 - Things Which Have Never Yet Been Done
Season 2 - Episode 9 - Aired 6/14/2014
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.
#21 - Governed As It Were By Chance
Season 2 - Episode 4 - Aired 5/10/2014
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.
#22 - Nature Under Constraint and Vexed
Season 2 - Episode 1 - Aired 4/19/2014
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.
#23 - The Redesign of Natural Objects
Season 4 - Episode 8 - Aired 6/2/2016
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.
#24 - The Collapse of Nature
Season 4 - Episode 1 - Aired 4/14/2016
A flashback to Beth Childs' final investigation, days before her suicide.
#25 - Ruthless in Purpose, and Insidious in Method
Season 3 - Episode 8 - Aired 6/6/2015
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.