The Classic 1950's film about giant ants...
In THEM!, atomic radiation once again manages to transform tiny harmless creatures into gigantic holy terrors. Probably the best of the 1950s phenomenon, this top-notch thriller witnesses giant ants set loose on a small town in the Southwest desert region of the United States. Two doctors from the Department of Agriculture are summoned to find the nest and destroy them...if they can.
The testing of an atomic weapon exposes a colony of ants to a high dose of radiation which later causes them to grow to mammoth proportions. A sci-fi classic.