When a Black oil well worker is killed by a band of California neo-Nazis, his gun-wielding grandmother busts out of her retirement home to avenge him.

A troubled Vietnam vet snaps during a training exercise at a survivalist-type military camp and thinks he's back in Vietnam. He kills several of the staff members who he thinks are Vietcong. The other participants set out to track him down and capture him before he hurts or kills anyone else. However, the camp's owner, who knows he'll be in trouble if word of this incident gets out, has no intention of capturing the man; he plans on killing him.

Tony Baker (Jimmy Williams), a Vietnam vet who is now an L.A. detective, is on the trail of the 'Mekong Dragon', assisted by his partner Brian O'Malley (Sandy Palm) and police Captain Washington (Robert Z'Dar).