With Fuller's help, Penhall tries to prove that Adabo pushed the drug dealer from the roof, and Hanson replaces him on the beat with Adabo. Meanwhile, Hoffs tries to help Darlene get clean. Also, Hoffs and Penhall turn to each other for help with their problems.

Fuller and Hoffs go undercover in a violent school after a teacher is shot by a student. Also, Hanson's mom moves in with her boyfriend.