Synopsis A young girl is found wandering in shock, in the New Mexico desert near White Sands by two state troopers. When they investigate they find that the trailer that she was staying in with her parents and sibling had been destroyed, an F.B.I. agent and most of his family. Police Sgt. Ben Peterson teams up with F.B.I. agent Bob Graham to find out what's causing the strange occurrences. Soon after, Peterson's partner and the owner of a general store are also killed. They find a strange print at one of the crime scenes, and it is sent to the Department of Agriculture. Doctor Harold Medford and his daughter Doctor Patricia Medford arrive, and ask to be taken to the scene of some of the disappearances. When they get there they are shocked to find gigantic ants, whose mutations were caused by the first atomic bomb explosion nine years earlier. They manage to destroy the nest of ants, but not before two winged queen ants and a couple of drones have hatched and escaped the nest. Now it is a race against time to find the two queen ants before they can establish more nests and hatch more queens.