In this sci-fi film, a college professor must deal with the cataclysmic consequences that ensue when a transmogrifying dragonfly bites a prehistoric fish from Madagascar. Soon after the bite, the strange fish becomes gigantic and begins passing on its new ability to morph all it comes in contact with back into their primal forms. When it bites a dog, the dog becomes a wolf. When some fish slime ends up in the professor's pipe, the professor put it to his lips, and he turns into a rampaging Neanderthal with a very large stone-axe that he freely wields around the terrified college campus. Bloody mayhem ensues.