The whole precinct’s holiday celebrations are cut short when they’re called to examine a ruthless homicide.

After investigating the murder of a millennial ‘designer drug’ dealer, Riggs and Murtaugh find themselves in a violent turf war between a new generation of drug dealers and a Koreatown…

Cole reflects upon his time working for the CIA, as a person from the past makes a startling reappearance. Murtaugh struggles with his own mistakes, after a murder raises questions…

Murtaugh and Cole investigate a robbery of a truck filled with fine art. Cole deals with lingering feelings for Natalie following a new development in her life. Riana blackmails Murtaugh…

Cole confronts his past when his former mentor delivers alarming news, as he and Murtaugh investigate a robbery of safe deposit boxes. Murtaugh clashes with Trish’s new client and enlists…

Murtaugh turns to Cole’s former mentor for help on a high-stakes cartel case. Murtaugh and Trish meet Natalie and Maya for the first time. Tensions mount between Bailey and ‘The…

Cole wants to talk to Natalie about their relationship before it’s too late, but a wrench is thrown in his plans after he bumps into a new ADA, Erica. After…

While Cole gets into the holiday spirit for his first Christmas with Maya, Murtaugh hopes he can convince RJ to come back home from Costa Rica for the holidays. Cole…

Cole finds himself on the rebound after Natalie’s engagement, and his new romantic interest, Julie, has an unexpected connection to A.D.A. Erica, complicating things at work. Meanwhile, Murtaugh worries about…

Murtaugh takes a family vacation, but is pulled back into work when he witnesses an alleged abduction. Cole is left to investigate a murder himself, but the two cases begin…

Murtaugh and Cole investigate the murder of an underground MMA fighter when Murtaugh realizes his fighting moves aren’t as sharp as they once were. Meanwhile, Trish is unfulfilled by her…

When Cole and Murtaugh investigate a case involving a father and daughter crossing the Mexican border, they end up uncovering a major issue with California Boarder Patrol. Meanwhile, Trish prepares…

Against Murtaugh’s advice, Cole reaches out to Tom Barnes to help with a case that hits close to home, putting Murtaugh and Cole’s partnership to the test. Meanwhile, Trish prepares…

When Cole is investigated by the FBI, Murtaugh is forced to question his loyalty to his own partner. Meanwhile, Cole works a case that puts Natalie’s fiancé, Andrew, into the…

A slightly unhinged former Navy SEAL lands a job as a police officer in Los Angeles where he’s partnered with a veteran detective trying to keep maintain a low stress…

Former international CIA operative, Wesley Cole returns home and assumes duty as a police officer with the LAPD. Cole will find himself navigating a new partnership with Murtaugh, as he…

New partners Murtaugh and Cole attempt to find a steady rhythm as they work to solve the murder of a finance executive. Cole navigates his role with his ex- and…

Cole juggles the realities of his job and his duty to be a good parent, as he and Murtaugh work together to bust a gang running a lottery scam. Murtaugh…

In the wake of his heart attack, Beau vows to stop sweating the small stuff — but Colt and Rooster’s latest blunder makes him lose his cool.

Maggie fights to keep the ranch afloat as she reaches a breaking point with the boys. Easter dinner with Abby’s parents takes a surprising turn.

Torn between the ranch and a job opportunity, Colt wonders what’s best for his family’s future. Mary offers to work at Maggie’s bar.

Four months later, wildfires rage in Colorado. Abby wants to postpone the wedding, but her parents don’t approve. Joanne stands up to a stubborn Beau.

Fires force the town to evacuate. While Maggie takes charge, Beau feels hopeless. Colt runs into Heather, and Rooster meets Mary’s boyfriend, Nick.

Colt and Mr. Phillips search for Abby. Heather warns Rooster about Nick. An unexpected celebration brings everyone together.

The Bennetts return to the ranch. Beau gets a business proposition from Neumann’s Hill. A face from Maggie’s past arrives with news.

When Colt lands in trouble covering for Rooster, he tries to cash in a favor. Beau invites Joanne to stay at the ranch. Colt plans a surprise for Abby.

Beau’s at the end of his rope and decides to teach Colt and Rooster a lesson. Mary realizes she needs to choose between Rooster and Nick.

Nick confronts Rooster. Running out of options, Colt reaches out to Lisa Neumann. Joanne urges Beau to make peace with Colt.

While Abby’s in Denver teaching, Colt works to rebuild the Peterson ranch. Rooster misses his first day of work.

After a fight with Nick lands Colt in hot water, Mary presses her ex for the truth. Beau delivers troubling news.

Beau intervenes to keep Colt out of trouble. Abby and Colt follow a lead. Maggie returns to Garrison, and Mary wrestles with guilt.

One month later, tensions run high as Colt and Abby scramble to get ready for the baby. Lisa Neumann makes Beau an offer.

Colt tries to keep his cool as he worries about Abby — and wonders if he’s ready to be a dad. Maggie catches Mary in a lie.

While Abby and Colt struggle with parenting an infant, another new arrival shakes things up at the ranch. Maggie confronts Mary.

Beau’s softer side emerges when he takes Luke under his wing, but Colt doesn’t trust his cousin. Maggie comforts an exhausted Abby.

Money troubles put a strain on Colt and Abby’s relationship. Beau tries to get Luke help for his PTSD but refuses to bail Colt out of a jam.

Colt hides the truth from Abby as their financial woes go from bad to worse. A drunken night leads to an awkward morning after for Mary.

Beau issues Luke an ultimatum. As Colt tries to prove himself to Abby, Luke makes him an offer — but Mary drives a wedge between them.

Abby asks Colt for space, but he finds every excuse in the book to drop by. Luke and Mary tie the knot in Vegas. Lisa Neumann accuses Colt of theft.

Back in Colorado, Luke works to win back Colt and Beau’s trust. Abby invites Colt to a teachers’ mixer. Mary struggles to stay clean.