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. Then, Bruce takes a treacherous hike.
Stars: Ben McKenzie, Donal Logue, David Mazouz
Director(s): Nick Copus
Writer(s): Bruno Heller, Ken Woodruff