
Ambitious young cops try to prove themselves in their high-stakes careers, in which the smallest mistake can have deadly consequences. At the core of the close-knit group is perfectionist Andy McNally (Missy Peregrym), whose father was a homicide detective before he burned out on the job. The series follows Andy and her four colleagues -- Dov Epstein, Gail Peck, Traci Nash and Chris Diaz -- as they experience the trials, triumphs and tribulations of police work, as well as its effect on their personal lives.

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

Officers from 15 Division race to find Traci after she fails to show up for a raid involving a notorious gun dealer.

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

Sam and Andy are determined to clear Oliver's name after discovering he is the prime suspect in the evidence room bombing.