In the wake of tragedy, LBPD training officer Traci Harmon takes on new trainee, Alex Diaz who on day one is already learning the job is harder than he imagined.

A chaotic street takeover finds our officers grossly outnumbered, revealing philosophical rifts inside West Division.

Back on patrol, the rift between Harmon and Diaz comes to a head.

When Diaz's family is threatened, Harmon realizes she must break her own rules to fix it.