They're not just ankle biters anymore.

A South American Piranha curse impregnates an innocent Chihuahua and her monstrous litter of amphibious, mutant Chihuahua/Piranha pups are unleashed upon a pristine mountain lake. The nasty critters meet their match when a rag-tag collection of eccentric campers, led by the lake's female ranger, unite to destroy the vicious little rat-pack with their bare hands and the most lethal of all processed cheese products.