Patrick investigates a double murder in Palm Springs that has all the hallmarks of a serial killer with a personal connection to Patrick.

A South Korean ambassador is a target for assassination at a state wedding. The plot thickens when another individual is gunned down instead.

The BAU team travels to San Francisco to investigate the murders of several homeless men and teams up with a separate group of BAU operatives who are working another case they think is connected.

Michael enters surgery, Linc and Sucre race against the clock to retrieve the Holy Grail of their mission, and Scylla's game-changing secret is revealed.

In the televisual equivalent of a rollercoaster ride, the deadly tug-of-war over Scylla intensifies, culminating in Michael falling into Company hands.

Chimney relives his evolution as a firefighter, looking back at how he joined Station 118 and became the firefighter and paramedic he is today.

With his friend in dire need of a kidney, Larry and Jeff argue about which of them should offer theirs. Plus, Larry aggravates two different receptionists.

A series of motorway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.

Eddie clashes with her new boss, while Danny gets Baez caught up in a case involving a grieving, yet suspicious couple.

Turtle gets a seat in first class next to Jamie-Lynn Sigler, but nobody believes him when he later claims that they had a 'mile-high' experience. Elsewhere, Josh Weinstein courts Vince while Ari is distracted.

In 2019, a fire breaks out in an East Hollywood apartment building killing several residents including a 10-year-old girl. Detective Harry Bosch arrives on the scene, but his partner is noticeably absent.

Bosch and Edgar follow a lead in the arson fire case to the famed Magic Castle. Lt. Billets ruffles feathers in the ranks. After Chandler's client, Vincent Franzen, spends a night in jail, he offers up a "big fish" as his get-out-of-jail-free card.

When the team gets too close to the truth about Wo Fat and his associates, the criminal mastermind retaliates by trying to destroy the team. They've always played by their own rules, but the Governor can no longer protect them.

Just when Audrey thinks she's safe, the terrorists strike back; Dina faces possibly sacrificing her son to the cause.

Walter takes a perilous swim to rescue a woman trapped in the La Brea tar pits, and Paige's mother maximises Ralph's troop cookie sales.

When Ben leaps onto a naval battleship during war games in 1989, he must not only navigate a dangerous rescue mission but also contend with his commanding officer, XO Alexander Augustine, otherwise known as Addison's father.

Billie and Zack attend separate parenting classes due to a conflict in their schedules. Accompanied by Olivia and Abby, Billie faces competition from her sister who does better in the assigned tasks.