Danny O'Brien is back in action fighting the notorious Simon Moon, also known as The Terror. Three years earlier O'Brien had single-handedly captured The Terror and was called Hero by the people of L.A. Now Simon has escaped and has started killing women again, and O'Brien is the only man who can stop him.

NYPD cop John McClane's plan to reconcile with his estranged wife is thrown for a serious loop when, minutes after he arrives at her office, the entire building is overtaken by a group of terrorists. With little help from the LAPD, wisecracking McClane sets out to single-handedly rescue the hostages and bring the bad guys down.

After a big-time country singer brags that she can turn anybody in to a country-singin' star, she's out to prove she can live up to her talk when she recruits a cab-driver as a country singer. He's scheduled to sing at a big-time NYC country night club and she puts her ample powers to work in preparing her protege.