13,363 votes
Orphan Black

Orphan Black

BBC America 2013

A streetwise hustler is pulled into a compelling conspiracy after witnessing the suicide of a girl who looks just like her.

Warning: the following content contains spoilers!

The 10 Best Episodes of Orphan Black

Orphan Black - S1E10

#1 - Endless Forms Most Beautiful (Season 1 - Episode 10)

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.

The episode was rated 8.54 from 2540 votes.

Orphan Black - S5E10

#2 - To Right the Wrongs of Many (Season 5 - Episode 10)

In the series finale, Helena prepares to deliver in the basement of Old Dyad while Sarah and Art fight to protect her from Neolution.

The episode was rated 8.48 from 1607 votes.

Orphan Black - S2E10

#3 - By Means Which Have Never Yet Been Tried (Season 2 - Episode 10)

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.

The episode was rated 8.40 from 2258 votes.

Orphan Black - S1E9

#4 - Unconscious Selection (Season 1 - Episode 9)

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.

The episode was rated 8.30 from 2443 votes.

Orphan Black - S3E10

#5 - History Yet to Be Written (Season 3 - Episode 10)

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.

The episode was rated 8.26 from 1948 votes.

Orphan Black - S4E6

#6 - The Scandal of Altruism (Season 4 - Episode 6)

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.

The episode was rated 8.25 from 2274 votes.

Orphan Black - S1E8

#7 - Entangled Bank (Season 1 - Episode 8)

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.

The episode was rated 8.24 from 2469 votes.

Orphan Black - S5E8

#8 - Guillotines Decide (Season 5 - Episode 8)

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.

The episode was rated 8.16 from 1659 votes.

Orphan Black - S2E9

#9 - Things Which Have Never Yet Been Done (Season 2 - Episode 9)

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.

The episode was rated 8.15 from 2185 votes.

Orphan Black - S2E7

#10 - Knowledge of Causes, and Secret Motion of Things (Season 2 - Episode 7)

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.

The episode was rated 8.14 from 2217 votes.

Orphan Black - S1E5
#11 - Conditions of Existence
Season 1 - Episode 5

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.

The episode was rated from 2610 votes.
Orphan Black - S1E7
#12 - Parts Developed in an Unusual Manner
Season 1 - Episode 7

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.

The episode was rated from 2496 votes.
Orphan Black - S5E7
#13 - Gag or Throttle
Season 5 - Episode 7

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.

The episode was rated from 1597 votes.
Orphan Black - S1E6
#14 - Variations Under Domestication
Season 1 - Episode 6

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.

The episode was rated from 2549 votes.
Orphan Black - S4E10
#15 - From Dancing Mice to Psychopaths
Season 4 - Episode 10

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.

The episode was rated from 2175 votes.
Orphan Black - S3E6
#16 - Certain Agony of the Battlefield
Season 3 - Episode 6

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.

The episode was rated from 1938 votes.
Orphan Black - S2E4
#17 - Governed As It Were By Chance
Season 2 - Episode 4

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.

The episode was rated from 2276 votes.
Orphan Black - S4E9
#18 - The Mitigation of Competition
Season 4 - Episode 9

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.

The episode was rated from 2126 votes.
Orphan Black - S2E1
#19 - Nature Under Constraint and Vexed
Season 2 - Episode 1

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.

The episode was rated from 2672 votes.
Orphan Black - S5E9
#20 - One Fettered Slave
Season 5 - Episode 9

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.

The episode was rated from 1602 votes.

Last updated: sep 22, 2022



Tatiana Maslany is so underrated, what a brilliant actress.


I'm on s2ep6 and I don't understand why some people gave it such bad reviews.. The show had to evolve in season 2, I think the direction is just as interesting. I started with s1ep1 yesturday and binged it. I read reviews before starting new shows I binge so anyone considering watching this show.. It Is Fucking Awesome! And I watch alot of tv.


Season 1 was very entertaining, a strong element of surprise with plot-twists throughout. Season 2 it all went to crap. Season 3 has that looming 'cancellation' feel. The episodes play on, but don't hold my attention like season 1. Many of the characters I'm not all that familiar with, and I don't care. Once great, now junk :-( They should've made it a 1-season limited-event show, with a resolution but still open enough to allow future limited-event seasons.


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