As a team of United Nations astronauts prepares for a moon mission, they are confused by a man who claims he, his fiancee and a scientist journeyed to the moon 65 years ago and were attacked by grotesque, human-like forms that live in immense crystal caverns.

When the United States and the Soviet Union simultaneously set off nuclear explosions, London's Daily Express begins to report on bizarre weather changes around the world. But when the reporters dig deeper, they discover that the blasts have knocked Earth off its axis and sent it hurtling towards the sun. Now, cities explode in chaos and mankind is left with one last hope: A final massive detonation that will either re-balance Earth's orbit or destroy...