A small town is the subject of some experiment with aliens where they were allowed to test some earth folks with some kind of disease, but of course it spread with disastrous results. And now, three oddballs have been dumped into the middle of this town as test subjects or something, and the race for survival is on. John West is a strongman, with a cowboy hat and leopard skin tights, Bill is a medical student, and Max is a mathematical genius, and it's them against the zombies.

The crew of an aircraft carrier discovers that it is being pursued by a UFO that turns out to be a radioactive probe from outer space. They appeal to the warring countries of Earth to stop fighting and help it to repel the invaders.