While fighting in Britain, Roman forces commanded by Caligula capture the noble warrior, Glaucus. Seeing in him gladiator material, Caligula takes Glaucus back to Rome along with other hostages including Glaucus's girlfriend, Ena. A man seeking to restore the Roman Republic then assassinates Caligula after which Claudius is proclaimed emperor. Messalina -- Claudius's beautiful but evil wife -- then maneuvers to replace Claudius with her lover, Silio. She forces Glaucus to help her in this quest by threatening to harm the enslaved Ena. Written by dinky-4 of Minneapolis
| Directing | Umberto Lenzi | Director |
| Sound | Carlo Franci | Original Music Composer |
| Camera | Pier Ludovico Pavoni | Director of Photography |
| Editing | Nella Nannuzzi | Editor |
| Writing | Gian Paolo Callegari | Writer |
| Writing | Albert Valentin | Writer |
| Camera | Fausto Rossi | Camera Operator |
| Directing | Filiberto Fiaschi | First Assistant Director |
| Directing | Victor Tourjansky | First Assistant Director |
| Directing | Larbi Tounsi | First Assistant Director |
| Directing | Liana Ferri | Script Supervisor |
| Production | Albino Morandin | Unit Manager |
| Production | Carlo Vassalle | Production Manager |
| Crew | Bruno Ukmar | Master at Arms |
| Camera | Mario Pastorini | Assistant Camera |
| Art | Franco D'Andria | Set Decoration |
| Costume & Make-Up | Otello Fava | Makeup Artist |
| Costume & Make-Up | Renata Magnanti | Hairstylist |
| Costume & Make-Up | Antonio Randaccio | Assistant Costume Designer |
| Sound | Franco Groppioni | Sound |
| Art | Pier Vittorio Marchi | Production Design |
| Costume & Make-Up | Mario Giorsi | Costume Design |
