major marphy black (reb brown) leads a group of commandos through the jungles of an unnamed island, but unknown to all involved but mascher (mel davidson), they are being stalked by mascher's robot invention, omega-1. over the protests of mascher, the group first saves a volunteer hospital worker, virgin (catherine hickland), from a band of guerrillas, then take out the hospital camp, killing all the guerrillas there, also. at this point, the robot begins killing members of the commando group, one by one. that night, mascher admits to marphy that he created omega-1, that it was acting sporadically, and that he was there to check out the match-up between the decorated marphy and omega-1.