9.2/101,874 votesLoading...#1 - 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.
Director: Grant Harvey
Writer: Chris Roberts
9.1/102,070 votesLoading...#2 - 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.
Director: Helen Shaver
Writer: Aubrey Nealon
9.1/101,513 votesLoading...#3 - To Right the Wrongs of Many
Season 5 Episode 10 - Aired 8/12/2017
With Helena forced to take shelter behind enemy lines, it’s a bloody last stand for survival as Sarah and Art struggle to protect her, and end the siege on the sestras once and for all.
Director: John Fawcett
Writer: Graeme Manson, Renée St. Cyr
9.0/101,539 votesLoading...#4 - History Yet to Be Written
Season 3 Episode 10 - Aired 6/20/2015
Castor and Topside force Sarah to make uneasy alliances. But there is some rest for the wicked, when Donnie gives Helena an unexpected ‘gift’, and the results of Alison’s candidacy finally come in. Even as team Leda takes a moment to breathe, change is afoot and a life hangs in the balance.
Director: John Fawcett
Writer: Graeme Manson
9.0/101,219 votesLoading...#5 - Guillotines Decide
Season 5 Episode 8 - Aired 7/29/2017
Mrs. S orders the sisters to take a night off from sleuthing to celebrate Felix's art opening. But while Felix attempts to impress a famous gallerist with the help of his sestras, Sarah remains on edge with a nagging suspicion that S is hiding something. Meanwhile, wounded and desperate, Rachel reunites with an old ally, but their plans for revenge on Neolution put Clone Club in the line of fire.
Director: Aaron Morton
Writer: Graeme Manson, Aisha Porter-Christie
8.9/102,193 votesLoading...#6 - 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.
Director: John Fawcett
Writer: Graeme Manson
8.9/101,867 votesLoading...#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.
Director: John Fawcett
Writer: Graeme Manson
8.8/101,172 votesLoading...#8 - Gag or Throttle
Season 5 Episode 7 - Aired 7/22/2017
As P. T. Westmorland demands a more aggressive action on Kira, and Sarah fights to save her daughter, Rachel discovers a dark secret that makes her question her place within Neolution. Meanwhile, Cosima has returned with a vital clue to Westmorland's true identity.
Director: David Frazee
Writer: Renée St. Cyr
8.7/101,061 votesLoading...#9 - One Fettered Slave
Season 5 Episode 9 - Aired 8/5/2017
A devastating loss is eclipsed when word reaches Sarah that Helena has been kidnapped. Clone Club bands together in a race against time, determined to find her before she has her babies. And with time running out, Sarah is forced into action in a last-ditch effort to save her sestra.
Director: David Frazee
Writer: Alex Levine
8.6/101,944 votesLoading...#10 - 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.
Director: T.J. Scott
Writer: Alex Levine
8.6/101,604 votesLoading...#11 - 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.
Director: Ken Girotti
Writer: Aubrey Nealon
8.6/101,507 votesLoading...#12 - The Collapse of Nature
Season 4 Episode 1 - Aired 4/14/2016
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
8.6/101,318 votesLoading...#13 - 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.
Director: John Fawcett
Writer: Graeme Manson
8.5/101,509 votesLoading...#14 - 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.
Director: T.J. Scott
Writer: Alex Levine
8.5/101,312 votesLoading...#15 - 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.
Director: Aaron Morton
Writer: Chris Roberts, Graeme Manson
8.5/101,286 votesLoading...#16 - Insolvent Phantom of Tomorrow
Season 3 Episode 9 - Aired 6/13/2015
Sarah, Felix, and Mrs. S are in London to track down the Castor Original, but their enemies are not far behind.
Director: Vincenzo Natali
Writer: Russ Cochrane
8.5/101,152 votesLoading...#17 - 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.
Director: David Frazee
Writer: Alex Levine
8.4/102,069 votesLoading...#18 - 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.
Director: John Fawcett
Writer: Will Pascoe
8.4/101,959 votesLoading...#19 - 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.
Director: Ken Girotti
Writer: Karen Walton
8.4/101,904 votesLoading...#20 - 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. Alison and Donnie attend the funeral of her fallen friend, Aynsley, causing Alison to sink into guilt and despair. Cosima is faced with a perplexing decision that may have dire consequences.
Director: John Fawcett
Writer: Graeme Manson
8.4/101,651 votesLoading...#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.
Director: David Frazee
Writer: Russ Cochrane
8.3/101,337 votesLoading...#22 - Community of Dreadful Fear and Hate
Season 3 Episode 7 - Aired 5/30/2015
Alison must secure a store front in order to take her and Donnie’s business to the “next level”. But things don’t go according to plan when her mother, Connie, proves to be a major hindrance. Cosima is facing familiar health issues and calls upon beleaguered Alison for a favor. But with Alison working to save an imperiled Donnie from the merciless hands of a drug lord, it’s Cosima who ends up doing a favor. An unassuming Scott gets closer to the greatest discovery of all, when he sits down with beleaguered clone Rachel.
Director: Ken Girotti
Writer: Sherry White
8.3/101,227 votesLoading...#23 - 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.
Director: John Fawcett
Writer: Russ Cochrane
8.3/101,165 votesLoading...#24 - Human Raw Material
Season 4 Episode 5 - Aired 5/12/2016
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
8.3/101,111 votesLoading...#25 - 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.
Director: Aaron Morton
Writer: Peter Mohan
The Best Episodes of Orphan Black
Every episode of Orphan Black ranked from best to worst. Let's dive into 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.
Genres:DramaSci-Fi & Fantasy
Best Episodes Summary
"The Scandal of Altruism" is the best rated episode of "Orphan Black". It scored 9.2/10 based on 1874 votes. Directed by Grant Harvey and written by Chris Roberts, it aired on 5/19/2016. This episode scored 0.1 points higher than the second highest rated, "Certain Agony of the Battlefield".