
As a result of nuclear testing, gigantic, ferocious mutant ants appear in the American desert southwest, and a father-daughter team of entomologists join forces with the state police officer who first discovers their existence, an FBI agent and, eventually, the US Army to eradicate the menace, before it spreads across the continent — and the world.
Onslow Stevens
Brig. Gen. Robert O'Brien

Sean McClory
Maj. Kibbee

Sandy Descher
The Ellinson Girl

Chris Drake
Trooper Ed Blackburn

Don Shelton
Trooper Capt. Fred Edwards

Fess Parker
Alan Crotty