Sarah's hard-won refuge in Iceland is shattered by a Neolution attack

Sarah returns home to track down an elusive new ally

As Sarah reels from the shocking discovery of Neolution’s biotech, she’s desperate to find answers

Sarah forms a precarious alliance in hopes of getting to the head of Neolution

Cosima makes a shocking discovery that leads her into a dangerous encounter

Sarah makes a lone decision that exposes Kendall to those from which she’s spent years hiding

Sarah regresses to old habits while struggling to cope with the consequences of her decisions

While Sarah is distracted, Siobhan sneaks out to seek vengeance

Sarah and Rachel come together for the greater good

Sarah sets out to bring down Neolution once and for all.