The film reunites LAPD detectives Martin Riggs (played by Mel Gibson) and Roger Murtaugh (played by Danny Glover) for another action-packed adventure. This time, they find themselves facing off against a powerful Chinese crime syndicate led by the ruthless Wah Sing Ku (played by Jet Li).
As Riggs and Murtaugh investigate a series of crimes connected to the syndicate, they are joined by their former colleague Leo Getz (played by Joe Pesci), who has become a private investigator. They also team up with Lee Butters (played by Chris Rock), a new addition to the LAPD who brings his own brand of humor and street smarts to the team.
Meanwhile, Riggs receives shocking news when he learns that his girlfriend, Lorna Cole (played by Rene Russo), is pregnant with his child. While Riggs grapples with the idea of becoming a father, Murtaugh faces his own challenges as he prepares to become a grandfather.
As the investigation heats up, Riggs and Murtaugh find themselves in a series of high-stakes confrontations with the syndicate, culminating in a thrilling showdown aboard a cargo ship. With the help of their allies, they manage to defeat Wah Sing Ku and dismantle his criminal empire.
In the end, Riggs and Murtaugh emerge victorious, but not without paying a personal price. Riggs decides to retire from the LAPD to focus on his growing family, while Murtaugh grapples with the idea of life without his partner. Despite their differences, the two friends share a bond that transcends the dangers they face on the job.
“Lethal Weapon 4” is praised for its explosive action sequences, sharp humor, and strong chemistry between its leads. It delivers the thrills and laughs that fans of the series have come to expect, while also exploring themes of friendship, family, and the passage of time. As the final installment in the “Lethal Weapon” series, it serves as a fitting conclusion to the adventures of Riggs and Murtaugh.