Gordon and Bullock set out to stop Gerald Crane, a biology teacher who has been harvesting the glands of his murder victims. Meanwhile, after finding herself in an unusual setting, Mooney continues plotting to gain power, and Falcone attempts to change Maroni's plan for the Penguin.

Penguin takes a hit for Galavan's murder, but doesn't let Gordon off easily. Meanwhile, Gordon and Bullock investigate the body-snatching spree of Victor Fries, one of Gotham's preeminent cryogenics engineers.

Gordon and Bullock follow a trail of clues in a robbery, not knowing they were left by Nygma; Gordon receives an anonymous threat; Penguin meets his father; Bruce works on his street smarts.

Bullock and Gordon try to track down someone who is key in Sofia's control over Gotham. Meanwhile, Penguin, Lee and Nygma enlist an unlikely ally as they seek revenge, and Selina asks Bruce for a favor to help rid her of her guilt over Ivy.

The Arkham inmates are still running freely in Gotham and they're only getting more difficult to catch. Gordon develops a plan, but reluctantly has to turn to Bruce for help. Meanwhile, Barbara finds out just how far her new friends are willing to go for her.