An officially "dead" cop is trained to become an extraordinary unique assassin in service of the U.S. President.

In the opening chase, Martin Riggs and Roger Murtaugh stumble across a trunk full of Krugerrands. They follow the trail to a South African diplomat who's using his immunity to conceal a smuggling operation. When he plants a bomb under Murtaugh's toilet, the action explodes!

A classical art professor and collector, who doubles as a professional assassin, is coerced out of retirement to avenge the murder of an old friend.