Mr. Pendleton is an important businessman whose son died in North Vietnam during the war. However, the father thinks he is still alive and hires a group of mercenaries to look for him. Little does he know that this group of assassins has no intention of going to Vietnam, they are only interested in his money. The mercenaries make only one mistake: they kill the assistant of the policeman Brad Spyder, who from then on only thinks of one thing, revenge.