When a young adoptee is suspected to have attacked his foster father, Nixon and Klein find that the boy is torn between his two families. The boy later disappears, and is found atop a high-rise building, but despite Boyden's efforts to coach him down, he jumps to his death, leaving his very angry brother to rage war on Boyden. Meanwhile, Okaro and Gold set up a surveillance camera in an attempt to catch the thief, and discover Carver breaking into Klein's locker. Carver reveals that Klein has been taking drugs and an obbo is staged to catch Klein in the act. Carver and Best catch Klein stealing from Carver's girlfriend's house, but Okaro chooses to send him into rehab rather than sack him.