Lethal Weapon 4 (1998)
Lethal Weapon 4 is a 1998 American buddy cop action film directed and produced by Richard Donner, and starring Mel Gibson, Danny Glover, Joe Pesci, Rene Russo, Chris Rock, and Jet Li (in his international film debut). It is the fourth installment in the Lethal Weapon film series. It is the last film in the series directed by Donner before his death, and the last to be released theatrically. A sequel titled Lethal Finale is in development for the streaming service HBO Max. Glover and Gibson will reprise their roles as Riggs and Murtaugh, with Gibson also in talks to direct.Plot.
Lorna Cole is pregnant with LAPD Sergeant Martin Riggs’ baby; they are not married, but both are thinking about it. LAPD Sergeant Roger Murtaugh’s daughter Rianne, is also pregnant. Due to issues with the department’s insurance carrier over Riggs and Murtaugh’s actions as sergeants, the Police Chief has Captain Murphy promote them to captains. The officers along with Leo Getz come upon a Chinese immigrant smuggling ring after running an ocean-going vessel aground, though the captain of the boat escapes. In the subsequent investigation, Murtaugh finds Hong and his family hiding from US Immigration officers to avoid deportation. Murtaugh offers them shelter in his home, and their families, along with Riggs and Cole, quickly bond. Hong reveals he is looking for his uncle, a skilled engraver, who had paid for their passage to the United States. Riggs discovers through Lorna that Murtaugh’s yet-to-be-born grandchild from Rianne is by Detective Lee Butters, which Murtaugh cannot possibly tolerate as he did not want his daughter to marry a police officer, and that Murtaugh still does not know who the father is due to the family hiding it from him. Continued investigation of the smuggling ring leads the officers to “Uncle” Benny Chan, a crime boss operating from a Chinatown restaurant.
There, they are introduced to high-ranking Triad negotiator Wah Sing Ku. Chan forces them out of his restaurant when the officers show no probable cause. Rigges steals an umbrella from a counter in the restaurant and pulls the fire alarm so that the sprinklers go on, forcing all the restaurant customers to flee. Outside, Riggs spots the escaped captain and tries to give chase but fails to capture him. However, Ku later intercepts the captain and kills him as punishment for attracting the police’s attention. Chan and Ku take steps to eliminate all those in on their plans.
Hong is able to contact his uncle, but this leads the Triads to Murtaugh’s house. Ku and the Triad thugs kidnap the Hongs, tie up Murtaugh, his family, Riggs and Cole and set the house ablaze. Ping, Hong’s grandson, has evaded capture and helps to free the others in time. Though Riggs and Murtaugh chase down and kill some of the Triad members, Ku escapes. Ku brings Mr. Hong to his uncle at a warehouse, where he has been engraving plates for a counterfeiting operation for Ku and Chan in exchange for transit for his family.