Gordon Scott plays Glaucus, the prince of Tiryns, a powerful warrior who goes undercover in Mycenae to infiltrate the evil cult of Moloch, which is exacting tribute from neighboring kingdoms in the form of attractive young hostages, both male and female. Calling himself "Hercules," Glaucus defeats Mycenae's champions and gains the favor of the voluptuous Queen Demetra (Rosalba Neri) whose son, covered in a dog's head mask, has been raised as the living embodiment of the dark god Moloch and receives sacrifices in his sprawling underground grotto.
| Directing | Giorgio Ferroni | Director |
| Production | Diego Alchimede | Producer |
| Crew | Augusto Tiezzi | Cinematography |
| Writing | Giorgio Ferroni | Writer |
| Writing | Remigio Del Grosso | Writer |
| Writing | Arrigo Equini | Writer |
| Production | Robert de Nesle | Co-Producer |
| Sound | Carlo Rustichelli | Music |
| Editing | Antonietta Zita | Editor |
| Art | Arrigo Equini | Production Design |
| Costume & Make-Up | Elio Micheli | Costume Design |
| Costume & Make-Up | Massimo Giustini | Makeup Artist |
| Costume & Make-Up | Violetta Pacelli | Hair Designer |
| Production | Diego Alchimede | Production Supervisor |
| Directing | Giancarlo Romitelli | Assistant Director |
| Sound | Armando Bondani | Sound Engineer |
| Sound | Franco Groppioni | Sound Engineer |
