Human-disguised aliens have traveled back in time to 1991. Their goal is to destroy Japan with their giant monsters, King Ghidorah and Gigan while Earth’s monsters Godzilla, Anguirus, and countless others will be put under their control destroying the rest of the world thus preventing this planet from reigning supreme in their future. The aliens believe that Earth can’t be trusted with their advanced technology and weapons tampering beyond the stars. But the G-Force counterattack their notion, as the only weapon they couldn't control is Godzilla. Enemies turned allies, Godzilla and Anguirus battle the aliens, King Ghidorah and Gigan in an epic sci-fi kaiju battle. Meanwhile, as the humans try to reshape their future, Miki Saegusa discovers an out-worldly origin of her psychic abilities.
