The evil King Zagro has designs on the beautiful Princess Sira. He wants to marry her so he can take over her kingdom and add it to his own. When Sira is kidnapped, Ursus leaves his farm to rescue her and to eventually lead a revolt against King Zagro.
Unfortunately the movie The Vengeance of Ursus is not yet available on HBO Max.
| Directing | Luigi Capuano | Director |
| Writing | Marcello Ciorciolini | Screenplay |
| Writing | Roberto Gianviti | Screenplay |
| Writing | Giovanni Scolaro | Screenplay |
| Camera | Oberdan Troiani | Director of Photography |
| Sound | Carlo Innocenzi | Original Music Composer |
| Writing | Marcello Ciorciolini | Story |
| Art | Alfredo Montori | Production Design |
| Art | Camillo Del Signore | Set Decoration |
| Costume & Make-Up | Antonia Quilici | Costume Design |
| Directing | Gianfranco Baldanello | First Assistant Director |
| Directing | Nellita Zampieri | Script Supervisor |
| Crew | Franco Fantasia | Master at Arms |
| Costume & Make-Up | Duilio Scarozza | Makeup Artist |
| Costume & Make-Up | Adriana Cassini | Hairstylist |
| Production | Augusto Dolfi | Unit Manager |
| Production | Giulio Pappagallo | Unit Manager |
| Camera | Mario Sensi | Camera Operator |
| Camera | Luigi Troiani | Assistant Camera |
| Sound | Mario Del Pezzo | Sound |
| Editing | Antonietta Zita | Editor |
| Production | Ferdinando Felicioni | Production Manager |
