Orphan Black

Sarah pursues Helena, who is being held in a compound far away; Sarah must deter a Topside investigator.

Castor pursues the clones in order to obtain original tissue samples; Helena is examined by a new villain.

Leda and Castor hunt for the original clone DNA; Mark and Gracie pursue new leads; Art and Sarah reunite.

Helena works in a faraway military compound; Sarah's fate hangs in the balance as she tries to save her sister.

Helena and her sestra are reunited at the Castor camp when Sarah is captured. As Sarah suffers testing, Paul appears to chide her; but his allegiances are beginning to strain. While the Leda family worries about Sarah’s absence, Gracie ‘breaks Amish’ under the care of Mrs. S and an unwilling Felix. Cosima falls hard for an internet date, Shay.

Paul learns the truth about Coady's plans for Castor and has no choice but to make a dangerous play; Alison and Donnie hatch a plot of their own regarding Bubbles.