When Queen Beryl interrupts the marriage between Sailor Moon and Prince Darien, the Princess Warriors move to Earth to protect the Jewels of Power.

Flash Gordon, Dale Arden and Dr. Hans Zarkov travel to the planet Mongo to fight the evil emperor Ming the Merciless.

After experiencing traumatic nightmares of a time now past, the Sorceress summons Prince Adam and Cringer to Castle Grayskull to give Adam a precious, jeweled sword and send the pair to the planet Etheria to investigate its secrets.