A streetwise hustler is pulled into a compelling conspiracy after witnessing the suicide of a girl who looks just like her.
Cast: Tatiana Maslany, Dylan Bruce, Jordan Gavaris, Kevin Hanchard, Maria Doyle Kennedy, Evelyne Brochu, Skyler Wexler, Inga Cadranel, Michael Mando, Kristian Bruun
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.
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.
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.
As Westmoreland demands a more aggressive action on Kira, and Sarah fights to save her daughter, Rachel finds a dark secret that makes her question her place within Neolution. Elsewhere: Cosima returns with a vital clue to Westmoreland's true identity.
Cosima is forced into an alliance when an old enemy returns to the island, accelerating P. T. Westmorland's sinister agenda. Meanwhile, on the mainland, Krystal stumbles onto a vital clue to the Neolution endgame. Sarah and Mrs. S’s research into Neolution's corporate ties leads to the cosmetics industry and an inevitable cross with Krystal Goderitch. But before Sarah can dig deeper, Krystal hijacks the investigation.
Secrets surface about Kira's special gifts while she spends time bonding with Sarah. Elsewhere: Cosima joins Delphine at the mansion for a strange family dinner.
Mrs. S and Sarah team up to investigate a lead on a Neolution defector. Elsewhere: an unexpected reunion takes place on the island and Cosima makes a terrible discovery during her research.
As Clone Club reels from the loss of one of their own, Sarah gnaws at the shackles Rachel has firmly placed around her family. Alison struggles to find her place in the sisterhood.
Rachel issues an ultimatum to Sarah, and the outcome sparks a clash with Kira, who begins exploring her own maturity. Also: Felix reconnects with an old ally to help his family get Kira.
Sarah strives to rescue Cosima while struggling to survive on the island herself. Elsewhere: Cosima reunites with Delphine.