When Nathalie’s run-in with Laurent leaves Bob’s case hanging by a thread, he bends the rules to the breaking point to motivate JP to make a deal.

Todd Ricketts, one of the owners of the Chicago Cubs, goes undercover within one of baseball’s most famous franchises and fights for the chance to redeem himself after being let…

Sheri, Ryan and Quintin find themselves going deeper undercover as Dion and Ashleigh grapple with their respective pasts. Monalisa has a major revelation about her daughter’s situation.

Lisbon goes undercover as a prison inmate in order to get a convict to turn on her boyfriend, who is the leader of a high-end car theft ring.

When Coups and the team get behind a high-performance Mercedes, the driver clocks the cops, goes full throttle up the motorway and careers off road. In Mansfield, Phil Broughton goes…

Lisbon goes undercover as a prison inmate in order to get a convict to turn on her boyfriend, who is the leader of a high-end car theft ring.

Jackie goes undercover as an escort when she and Danny track down a serial killer who is murdering prostitutes in hotel rooms. Meanwhile, Erin meets a potential suitor at an…

Sam and Callen go undercover as firefighters when top secret information about suspected terrorists is stolen from a secure Department of Defense container at the site of a fire.

After Operational Psychologist Nate Getz fails to check in with Hetty while working undercover on a mission linking organized crime to terrorism, the team learns he is working with an…

Kensi and Deeks go undercover at a decommissioned nuclear power plant as the team investigates the radiation poisoning of a Gunnery Sergeant moonlighting as a security guard there.

A 20-year-old Peruvian massacre is investigated after a famous fashion model, believed to be one of the survivors, becomes a potential target. Kensi goes undercover as the model’s assistant, while…

Atwater goes undercover to take down a gun-trafficking ring, but discovers an officer from his past is undercover in the same organization.

When Atwater goes undercover in a dangerous South Side drug syndicate, he learns there may be more to its kingpin than meets the eye. Halstead tries to join Atwater undercover,…