A massive explosion and shootout in snowy Causeway Bay, Hong Kong, reveals a pharmaceutical heir's plot. His father's death in hospital triggers a drug war, destabilizing both legitimate and criminal worlds.
With personal crises and age weighing in on them, Riggs and Murtaugh must contend with deadly Chinese triads trying to free their former leaders from prison and onto American soil.
To save her father from certain death in the army, a young woman secretly enlists in his place and becomes one of China's greatest heroines in the process.
Truck driver Jack Burton gets embroiled in a supernatural battle when his best friend Wang Chi's green-eyed fiancée is kidnapped by henchmen of the sorcerer Lo Pan, who must marry a girl with green eyes in order to return to the human realm.