As Sarah reels from the shocking discovery of Neolution's biotech, she's desperate to find answers. Always impulsive, she follows a lead into a harrowing encounter that requires the help of a reluctant new player. Eager to assist, Mrs. S strikes an alliance with an old nemesis. Rachel receives a visit from her keeper and takes a fraught step forward towards recovery. Meanwhile, Helena is mistaken for "Mrs. Hendrix" when she answers a visit from suspicious visitors.

While Sarah takes the day off to reconnect with Kira, Cosima steps up and infiltrates an exclusive Neolutionist fertility research center. A shocking discovery of their clandestine experiments leads her into a dangerous encounter.