In order to placate the angry gods, who have allowed Thessaly to be overrun with barbarian invaders and beset with natural disasters, King Jason takes his Argonauts on a search for the fabled Golden Fleece. Meanwhile, back at home, his scheming regent is plotting to get his hands on the kingdom--and the queen.
| Directing | Riccardo Freda | Director |
| Writing | Riccardo Freda | Screenplay |
| Writing | Giuseppe Masini | Screenplay |
| Writing | Mario Rossetti | Screenplay |
| Writing | Ennio De Concini | Screenplay |
| Production | Virgilio De Blasi | Executive Producer |
| Sound | Carlo Rustichelli | Music |
| Camera | Raffaele Masciocchi | Director of Photography |
| Camera | Václav Vích | Director of Photography |
| Editing | Otello Colangeli | Editor |
| Art | Antonio Visone | Set Decoration |
| Costume & Make-Up | Mario Giorsi | Costume Design |
| Costume & Make-Up | Anna Graziosi | Hairstylist |
| Costume & Make-Up | Giuseppe Peruzzi | Makeup Artist |
| Production | Enrico Bologna | Unit Manager |
| Directing | Odoardo Fiory | Assistant Director |
| Art | Franco Lolli | Set Designer |
| Sound | Renato Cadueri | Sound |
| Sound | Luigi Puri | Sound |
| Camera | Enrico Cortese | Assistant Camera |
| Camera | Carmelo Petraglia | Camera Operator |
| Camera | Alfio Quattrini | Still Photographer |
| Camera | Antonio Schiavo Lena | Camera Operator |
| Sound | Franco Ferrara | Music Director |
| Directing | Vittoria Vigorelli | Script Supervisor |
| Production | Giuliano Sambati | Production Secretary |