Hoffs goes undercover inside a massage parlor that is also believed to be a brothel for underage girls, while Officer Garrett goes undercover as a patron. Meanwhile, a DEA agent is also investigating the owner of the parlor for drug trafficking.

New Jump Street recruit Officer McCann is assigned to get close to a mentally handicapped youth in order to find out who murdered his partner in a buddy system which paired him and other mentally handicapped kids with troubled youths. Meanwhile, Hoffs and Penhall try to find out more about McCann's background.