When the Division helps tenants move out of a condemned subsidized-housing complex, they discover a badly beaten man in one of the empty units.

The officers of 15 Division work to track down Ted McDonald. But even after catching him, they realize Ted has more targets set to explode out there. The clock is ticking…

Andy and Sam return to work; Andy is attacked at Traci's place and Sex Crimes Unit tries to take over the case

Andy contemplates her future with Sam after learning heartbreaking news. Andy meets a teen in need of protection.

A riot breaks out at a women’s correctional institute while Andy, Juliet, Nick, and Gail are there to transfer prisoners. They end up separated and in a lock-down situation that finds Andy and Juliet trapped with a woman desperate to prove her innocence.

Nick receives new information on his tragic past, and goes off the grid to track someone down; Nick is forced to tell Juliet about his secrets.

Andy and Sam are shocked to learn that Oliver is the prime suspect in IA’s corruption investigation into 15 Division. What’s worse, they only have until end of day today to find Chris Klem – the missing explosives-dealer – and clear Oliver’s name before he takes the fall.

A community-outreach baseball game is interrupted by a drive-by shooting. Sam plans a getaway with Andy.

Andy and Sam are shocked to learn that Oliver is the prime suspect in IA’s corruption investigation into 15 Division. What’s worse, they only have until end of day today to find Chris Klem – the missing explosives-dealer – and clear Oliver’s name before he takes the fall.

Andy, Dov, Gail and Nick undertake a risky plan; Traci shadows Steve Peck, hoping to calm her fears about his involvement in the bombing.

Dov and Andy cover a music festival where a girl ends up dead due to drugs. Gail goes to court and is unsure whether lying for her brother is the right thing to do. Nick gives Juliet another chance.