Flash Gordon, a handsome polo player and Yale graduate, and his companions Dale Arden and Dr. Hans Zarkov. The story begins with Earth bombarded by fiery meteors. Dr. Zarkov invents a rocket ship to locate their place of origin in outer space. Half mad, he kidnaps Flash and Dale, whose plane has crashed in the area, and the three travel to the planet Mongo, where they discover the meteors are weapons devised by Ming the Merciless, evil ruler of Mongo.
For many years, the three companions have adventures on Mongo, traveling to the forest kingdom of Arboria, ruled by Prince Barin; the ice kingdom of Frigia, ruled by Queen Fria; the jungle kingdom of Tropica, ruled by Queen Desira; the undersea kingdom of the Shark Men, ruled by King Kala; and the flying city of the Hawkmen, ruled by Prince Vultan. They are joined in several early adventures by Prince Thun of the Lion Men. Eventually, Ming is overthrown, and Mongo is ruled by a council of leaders led by Barin. Flash and friends return to Earth and have some adventures before returning to Mongo and crashing in the kingdom of Tropica, before reuniting with Barin and others. Flash and his friends would travel to other worlds and frequently return to Mongo, where Prince Barin, married to Ming's daughter Princess Aura, has established a peaceful rule (except for frequent revolts led by Ming or by one of his many descendants). The long story of the Skorpii War takes Flash to other star systems, using starships that are faster than light.