Three Vietnam vets have become so conditioned to violence that they have developed psychotic tendencies. They kidnap people, brutalize them, then turn them loose and hunt them like animals. However the father of one of their earlier victims is plotting a vicious revenge against them.
Unfortunately the movie Open Season is not yet available on HBO Max.
| Directing | Peter Collinson | Director |
| Writing | Liz Charles-Williams | Writer |
| Writing | David D. Osborn | Novel |
| Writing | José Antonio Sáinz de Vicuña | Writer |
| Sound | Ruggero Cini | Music |
| Crew | Fernando Arribas | Cinematography |
| Editing | Alan Pattillo | Editor |
| Production | José Antonio Sáinz de Vicuña | Producer |
| Production | George H. Brown | Executive Producer |
| Art | Gil Parrondo | Production Design |
| Art | Gil Parrondo | Art Direction |
| Costume & Make-Up | Ana Criado | Hairstylist |
| Costume & Make-Up | Cristóbal Criado | Makeup Artist |
| Costume & Make-Up | Luis Criado | Assistant Makeup Artist |
| Production | Manuel Amigo | Production Manager |
| Production | Francisco Molero | Production Supervisor |
| Production | Carlos Orengo | Unit Manager |
| Directing | Adolfo Aristarain | Assistant Director |
| Directing | Juan Estelrich March | Second Assistant Director |
| Art | Julián Mateos | Property Master |
| Sound | Sebastián Cabezas | Sound Recordist |
| Sound | John Hayward | Sound Re-Recording Mixer |
| Sound | Gordon K. McCallum | Sound Mixer |
| Sound | Wally Milner | Sound Recordist |
| Sound | Don Sharpe | Sound Editor |
| Crew | Antonio Balandín | Special Effects |
| Crew | Juan Maján | Stunts |
| Camera | Eduardo Noé | Camera Operator |
| Camera | Julio Leyva | Assistant Camera |
| Camera | Hans Burmann | Director of Photography |
| Camera | Ramiro Sabell | Assistant Camera |
| Costume & Make-Up | Martín Díaz | Wardrobe Master |
| Costume & Make-Up | Tony Pueo | Wardrobe Master |
| Production | Graciela Nunez | Production Secretary |
| Directing | Margarita Pardo | Continuity |
