Gor /ˈɡɔr/ is the parallel universe Counter-Earth setting for an extended series of novels by John Norman that combine philosophy, erotica, and science fiction. Two films have been made (often considered generic grade-B sci-fi flicks only very loosely based on Norman's books), Gor and Outlaw of Gor (also known as Outlaw); the latter appeared on Mystery Science Theater 3000.
American professor Tarl Cabot is transported via a magical ring to planet Gor, where he must help an oppressed country overthrow its evil king and his barbarian henchmen.
An Earthman returns to the planet Gor, and fights against tyranny.