Lethal Weapon 4 is a 1998 buddy cop action-comedy film directed by Richard Donner and starring Mel Gibson, Danny Glover, Joe Pesci, Rene Russo, Chris Rock and Jet Li. It is a sequel to Lethal Weapon, Lethal Weapon 2 and Lethal Weapon 3.

Martin Riggs and Roger Murtaugh, after escaping death from the previous movies are put on a hit list by The Triads. When blood thirsty mercenaries are on their tail they team up again with Leo Getz and Lorna Cole, a newcomer (Chris Rock) to finally put an end to the Triads for good. Written by Brian H

Martin Riggs and Roger Murtaugh, each now feeling too old to be doing what they're doing, try to stop the Chinese Triads from doing their illegal business in the U.S. Uncle Benny, Chinatown's mob boss, has imported Chinese slaves to pay for an artist to create counterfeit Chinese currency which the Triads (led by Jet Li) will use to buy the Four Fathers (heads of the Triads) back from the Chinese military. Chris Rock joins the team as a new cop and Rianne's husband. Lorna is pregnant and considers marriage with Riggs, and Leo Getz is back, now as a private investigator. Written by Jason Ihle

Riggs und Murtaugh stoßen durch Zufall bei einem Angelausflug auf ein Schiff voll gefangener chinesischer Immigranten. Der nichts ahnende Murtaugh nimmt die Chinesen bei sich zu Hause auf. Eine Entscheidung mit fatalen Folgen, denn die asiatische Mafia hat ausgerechnet an dieser Familie ein hohes Interesse. Damit ist ein Zusammenprall zwischen dem Copteam und der asiatischen Unterwelt vorprogrammiert. Written by Jens

LAPD sergeant Roger Murtaugh, his partner, sergeant Martin Riggs, and their friend Leo Getz, who is now a private investigator, are out on Murtaugh's boat, fishing in the Los Angeles Harbor, when they are sideswiped by a huge freighter. After a wild gunfight against a group of Chinese men who were on the freighter, it is discovered that the freighter is full of illegal Chinese immigrants. As Murtaugh sulks over what is left of his now sunken yacht, he discovers a hidden Chinese immigrant family and their patriarch, Mr. Hong, and decides to take them in. At the police station, Detective Ng expresses his belief that Chinatown crime boss Benny "Uncle Benny" Chan is behind the smuggling. Sergeant Lorna Cole of the Internal Affairs Division is unable to help out on the case because she is pregnant with Riggs's baby, and Murtaugh's daughter Rianne is also pregnant. Helping Riggs, Murtaugh, and Leo on the case is Sergeant Lee Butters, the father of Rianne's baby. Wah Sing Ku, a leader in the Chinese Triads, is angry about the disappearance of the Hong family, the family Murtaugh took in, and Wah Sing Ku and the triads are the most dangerous enemies that Riggs and Murtaugh will ever face together. Wah Sing Ku and his men show up at the Murtaugh house, take the Hongs, and set the house on fire with Riggs, Lorna, Murtaugh, Rianne, Murtaugh's wife Trish, Murtaugh's other daughter Carrie, and his son Nick inside. Unknown to Wah Sing Ku, little Ping, the youngest member of the Hong family, was left behind in the house. Ping frees Riggs, who frees the others. Later, when Riggs, Murtaugh, Butters, and Lorna discover that Wah Sing Ku has killed Mr. Hong, Mr. Hong's uncle, and Uncle Benny Chan, Roger takes it very personally because Hong and Hong's uncle were killed. Written by Todd Baldridge