Lethal Weapon is a buddy cop movie series starring Mel Gibson and Danny Glover. A total of four films have been made since the first one in 1987, and all have been a success at the box-office.
Lethal Weapon 4
In the combustible action franchise's final installment, maverick detectives Martin Riggs and Roger Murtaugh square off against Asian mobster Wah Sing Ku, who's up to his neck in slave trading and counterfeit currency. With help from gumshoe Leo Getz and smart-aleck rookie cop Lee Butters, Riggs and Murtaugh aim to take down Ku and his gang.