Watch Full movie: Lethal Weapon 4 (1998) Online Free.
With personal crises and age weighing in on them, LAPD officers Riggs and Murtaugh must contend with a deadly Chinese crimelord trying to get his brother out of prison.
Director: Richard Donner
Writers: Shane Black (characters), Jonathan Lemkin (story)
Stars: Mel Gibson, Danny Glover and Joe Pesci