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.

While investigating a triple execution-style homicide, Reese and Crews go up against an old nemesis, a Russian mob boss who has woven a deadly and wicked web.

Crews and Reese race the clock to stop a serial killer who’s locking people in boxes and leaving them to die all over L.A.

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.

When the girlfriend of a cop is murdered, Crews and Reese must play a literal game of good cop bad cop to find the killer.

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.

In the chaos of an L.A. earthquake, a killer sets a trap for Crews.

Prices aren't the only things falling when Crews and Reese investigate a man's death in a mall the morning of Black Friday.

After a Space Shuttle pilot is found shot to death after managing to land his private plane, Crews and Reese must determine if it was suicide or murder.

Crews and Reese discover that rich kids, steroids, and murder are a bad mix.

Charlie and Reese work a case so cold it's frozen.

Crews and Reese investigate the murder of a multi-million dollar lottery winner whose number was up.

When the lead singer of a cover band is found dead on stage, Crews and Reese must go through a string of impersonators to find the real killer.

Reese and Crews take a trip to an Indian reservation to find out who killed the last sheriff standing.

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.

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.

A food bank delivery man is found murdered and buried up to his neck, surrounded by flower petals in a backyard. Crews and Reese believe the incident may be related to a cult from the 1970s. Crews confronts Mickey Rayborn, despite warnings from the FBI.

Crews and Reese begin their investigation and discover the victim was running an elaborate construction scam that left his clients without roofs or money.

Crews must battle his own psychological prison when he and Reese take on a case where worst nightmares become reality.

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 Reese investigate a case where an online infatuation turns into a deadly crush.