Reese receives and offer to join an FBI organized crime task force, leaving Crews and Stark to partner up. The former partners work on a case of a philandering financial advisor who was murdered and discover a case of corporate and political corruption.

Crews and Starks investigate the murder of an Iraq war soldier who despite being killed in broad daylight on a crowded sidewalk, no one witnessed the crime.

With his new overachieving partner, Crews investigates the murder of a woman who was in a relationship with her just-released convict pen pal.

Crews and Seever are under pressure to solve the murder of an assistant coroner; a murder that if left unsolved, could jeopardize all of their closed cases.

When the wife of a prominent campaign runner is murdered, Crews and Seever wonder if her death is related to a controversial gun ban initiative that she spearheaded.

When Roman wants to trade Reese for Rayborn, whom he's convinced is still alive, Crews launches a covert crusade to find his partner, which brings him answers to long-standing questions along the way.