Yukihiko Gondō

A toxic, ever-evolving alien life-form from the Dark Gaseous Nebula arrives to consume rampant pollution, and neither humanity nor Godzilla may be able to stop it.

A space probe is infiltrated by alien beings and then crashes on a remote Pacific atoll. A group of people discover it to be inhabited by giant mutant monsters, created by the aliens in an attempt to conquer the world.