Lethal weapon: The story of two Vietnam-vets-turned-cops who have just one thing in common: both hate to work with partners. But their partnership becomes the key to survival when a murder investigation leads to war with a heroin ring. Lethal weapon 2: Riggs and Murtaugh must guard a free-wheeling witness in a comedy of car chases, gun battles, under-water escapes, even the destruction of a chic hillside house. Lethal weapon 3: Further action by...