Orphan Black (2013)

S4E6 The Scandal of Altruism

As Cosima grapples with her uncertainty about discovering a cure in time to save herself, Sarah takes a bold step that reveals Kendall to the very people she has worked hard to avoid. At the same time, Art and Felix join forces to safeguard the unsuspecting clone, Krystal Godderitch, from her own misguided choices.