Andy, Nick, Gail, and the new officer Juliet Ward go to a women's prison for a prisoner transfer. However when a riot starts, the four are separated with Andy and Juliet trapped with a desperate woman.
When Nick disappears after his older brother resurfaces with new information about something from his childhood, Juliet is right on his trail. Meanwhile, 15 Division's officer's are on a trail of their own when convict escapes from prison.
15 Division tries to move past the scandal as a heat wave hits and Jarvis opens the doors to the public as a cooling station. Meanwhile, Andy and Marlo go looking for a missing woman and Oliver returns to work as a beat cop.