Andrew Boran, a brilliant professor, has decoded messages from outer space which accurately predict major natural catastrophes occurring throughout the globe. The aliens responsible for these transmissions are about to lure the unwitting scientist and his beautiful wife into aiding them in their murderous plan...the total destruction of our planet.

These invaders plan to destroy the world with the natural disasters. As the human, Father Pergado and alien leader Zindar (Christopher Lee) explain - the Earth is a hotbed of disease that cannot be permitted to continue polluting the galaxy.