Andy considers leaving town for a four-month-long undercover project; Jarvis reveals that the division will be restructured.
When a heat wave strikes, 15 Division opens to the public as a cooling station.
Andy, Dov, Gail and Nick undertake a risky plan; Traci shadows Steve Peck, hoping to calm her fears about his involvement in the bombing.
Andy and Sam are shocked to learn that Oliver is the prime suspect in Internal Affair's corruption investigation and they must find a missing explosives dealer to clear Oliver's name.
A day of community outreach turn violent.
15 Division fears Traci has been kidnapped.
Nick receives new information on his tragic past, and goes off the grid to track someone down.
While Andy, Juliet, Nick and Gail are at a women's correctional facility, a riot erupts.
Andy contemplates her future with Sam after learning heartbreaking news.
Andy and Sam return to work; Andy is attacked at Traci's place.