Lethal Weapon

Murtaugh follows Riggs to Mexico, where he plans to finish off Tito Flores. Avery is questioned by Internal Affairs about the integrity of his department.

When Riggs and Murtaugh respond to the death of a plastic surgeon, they are drawn into a case involving an illegal drug ring run out of a wellness clinic. Things heat up when Karen Palmer from the DEA and Riggs compete to solve the case first. Meanwhile, Trish and Murtaugh face the emotional challenges of sending their first son RJ off to college.

Murtaugh and Riggs investigate the mysterious death of famous singer Shaye's bodyguard. Murtaugh uses his daughter's knowledge of the singer to uncover possible suspects. Murtaugh helps Riggs learn about relationships.

When Murtaugh and Riggs respond to a robbery that took place 20,000 feet in the air, the investigation turns into an ongoing hunt for an unreliable father whose daughter is Murtaugh and Riggs's main witness. Meanwhile, Murtaugh faces hostility from his daughter Riana as he tries to connect with her.

Murtaugh and Riggs investigate a death that occurs moments before the victim's bet wins a horse race, but when Leo Getz insists that it's a homicide, he proceeds to help the investigation along. Meanwhile, Murtaugh updates his will and Riggs struggles to come to terms with his past.

Riggs is reunited with childhood friends but comes to realise that they might be mixed up in a robbery-homicide case that he and Murtaugh are investigating. Meanwhile, Murtaugh finds a joint stashed in his kitchen that he brings to Scorsese for testing in an effort to bust one of his kids.