One day the post apocalyptic peoples of the surface staged a revolt against the the sky island people the leader of the revolt was Muhammad he vowed to destroy sky island ever since he got handicapped because he fell when the island first rose. They took the largest plane they had and started. Meanwhile Anthony had all his soldiers on guard ready to fight off any attackers . Suddenly general Mohammed hears a bomb go off suddenly 10 soldiers die. Then he says attack and a torrent of soldiers is tearing the fort apart. Mohammed barely put together a defense before boom the island thruster explodes and they all die the end.
Lets take you back to the beginning when a nuclear war occurs the entire world is a nuclear wasteland except one state new York the entire state was shielded by a force field.the radiation would soon contaminate the soil they had to get out of there. So the scientists of new York devised a plan to launch new York into space. They after two days succeed in creating the thruster and they blast off the last humans on earth.
10 years later the surface nuclear mutants invade new york