When Shannon Griffin and her family move away from their chaotic life to the idylic town of Mountview, urban stress becomes the least of their problems. When a local girl is attacked while swimming in the town lake, the examination reveals that she is the victim of a mysterious creature, unknown to science. As tension mounts several more townspeople are found dead and their bodies are infested by a strange form of insect larva. Soon the town is overrun with mutant insects and rampaging bugs. Genetic scientist, Dr Fujimoto must trace the creepy creatures to their source in an attempt to save the town from total annihilation.