To maintain his powers, the evil wizard Traigon must sacrifice his firstborn child to the god Caligara. His wife, however, has other ideas and runs away after giving birth with her twin daughters. Before dying, she hands the girls over to the warrior Krona who promises to raise them as great soldiers. Twenty years later, Traigon returns and begins hunting down his daughters once again. Will the twins, with the help of the Barbarian Erlik and the Viking Baldar, be able to defeat their father?
| Writing | Jim Wynorski | Writer |
| Directing | Jack Hill | Director |
| Camera | Álex Phillips Jr. | Director of Photography |
| Editing | Barry Zetlin | Editor |
| Visual Effects | John Carl Buechler | Creature Design |
| Crew | Marcus Patchet | Special Effects |
| Art | Joe Greenman | Art Direction |
| Editing | Larry Bock | Editor |
| Production | Jack Hill | Producer |
| Costume & Make-Up | Bertha Chiu | Hairstylist |
| Art | Carlos Grandjean | Set Decoration |
| Costume & Make-Up | Kleomenes Stamatiades | Costume Design |
| Costume & Make-Up | Carol Palomino | Makeup Artist |
| Production | Roger Corman | Executive Producer |
| Sound | James Horner | Music |
| Costume & Make-Up | Tony Randel | Wardrobe Master |
