In the year 3000, the Earth has been decimated by 10-foot tall aliens known as Psychlos who are stripping the planet of its natural resources. Only a few humans survive, including Pepper who becomes the leader of a rebellion. Travolta plays the leader of the bad aliens and is extremely evil-lookng but in a strangely campy way. Based on a 1982 novel by Scientology founder L. Ron Hubbard. Film generated controversy for that reason and supposedly "subliminal" church messages but you'll simply be stunned into submission by how badly it blows.