Something is very wrong in the Southwestern desert! It starts when rogue rattlesnakes attack two young boys, and it goes downhill from there. The local authorities summon herpetologist Dr. Tom Parkinson to investigate why the snakes are being such jerks. With the help of photographer and fledgling feminist Ann Bradley, the two of them embark on a haphazard and half-assed investigation – and romance. The hunt leads them to a nearby army base and its uncooperative commanding officer, Colonel Stroud. But when marauding rattlers kill two soldiers, the medical officer on the base can no longer keep silent and reveals the terrible secret, unleashing a chain of events, which lead to all kinds of explodey 1976 action, putting an end to the deadly rattlers. Maybe...

The bugs shall inherit the earth! Or so says Annabelle, the hottest, the sexiest, and by far the craziest psycho blonde chick to hit Japan since WWII. Deeply embittered about the whole man's-inhumanity-to-man thing, she enacts a diabolical plot to unleash a swarm of mutant insects on the world that will destroy all living creatures except creepy crawlers. Ensnared in all this madness is a philandering island-hopping bug collector and his compliant and slightly pregnant wife, a humorless doctor from the mainland, and a United States airman named Charlie, whose way of starting a conversation is to hysterically scream "Genocide!" and then go off his rocker like the dedicated military professional he is. If you want to watch a story where everybody gets their nuclear holocaust on in the grand tradition of radioactive Japanese monster movies, this is the film for you!