Tijdens de Spaanse Burgeroorlog moet een stel aartsvijanden samenwerken na een ontmoeting met vleesetende zombies, die tot leven zijn gebracht in een nazi-experiment.
| Production | Álvaro Augustin | Producer |
| Editing | Martí Roca | Editor |
| Production | Paloma Molina Temboury | Executive Producer |
| Crew | Javier Rodero | Compositor |
| Production | Cristian Conti | Producer |
| Production | Guadalupe Balaguer Trelles | Executive Producer |
| Camera | Kiko de la Rica | Director of Photography |
| Directing | Alberto de Toro | Director |
| Directing | Javier Ruiz Caldera | Director |
| Writing | Cristian Conti | Screenplay |
| Writing | Jaime Marques | Screenplay |
| Sound | Laia Picón | Sound Effects Editor |
| Visual Effects | Laura Pedro | Visual Effects Supervisor |
| Writing | Alberto Fernández Arregui | Writer |
| Writing | Manuel Martín Ferreras | Graphic Novel |
| Production | Ghislain Barrois | Producer |
| Production | Mercedes Barbod | Executive Producer |
| Production | Edmon Roch | Co-Producer |
| Production | Javier Ugarte | Co-Producer |
| Production | Jorge Tuca | Delegated Producer |
| Production | Mónica Iturriaga | Delegated Producer |
| Production | Tatiana Villacob | Delegated Producer |
| Production | Núria Costa | Associate Producer |
| Art | Pepe Domínguez del Olmo | Production Design |
| Art | Laura Matas Andrés | Art Direction |
| Costume & Make-Up | Cristina Rodríguez Torres | Costume Design |
| Costume & Make-Up | Montse Sanfeliu | Makeup Department Head |
| Costume & Make-Up | Jesús Martos | Hair Department Head |
| Sound | Javier Rodero | Music |
| Crew | John Carpenter | Additional Music |
| Production | Marta Sánchez de Miguel | Production Manager |
| Sound | Isaac Bonfill | Sound Recordist |
| Sound | Oriol Tarragó | Sound Designer |
| Sound | Yasmina Praderas | Sound Re-Recording Mixer |
| Crew | Lluís Rivera | Special Effects |
| Visual Effects | Laura Pedro | Visual Effects Director |
| Visual Effects | Berta Coderch | Visual Effects Producer |
| Production | Ana Sainz-Trápaga | Casting |
| Production | Patricia Álvarez de Miranda | Casting |
| Directing | Gerard Verdaguer | First Assistant Director |
| Crew | Diego San José | Additional Writing |
| Directing | Anna Aran Pérez | Second Assistant Director |
| Directing | Albert Auladell | Second Assistant Director |
| Directing | Lara Rivas | Third Assistant Director |
| Directing | Carla Altimir | Assistant Director |
| Directing | José Luis Iglesias Tamayo | Assistant Director |
| Directing | Anna Vilà Parera | Script Supervisor |
| Production | Pol Guamis | Unit Production Manager |
| Camera | Pau Reig | Camera Operator |
| Camera | Guillem Huertas | Focus Puller |
| Camera | Celine Gravez | Focus Puller |
| Camera | Miquel Auguet | First Assistant "A" Camera |
| Camera | Cristina Olivé | First Assistant "B" Camera |
| Camera | Quim Vives | Still Photographer |
| Art | Pedro Godoy | Assistant Set Decoration |
| Art | Montse Soler | Property Master |
| Art | Nuria Llinares | Set Decoration |
| Art | Júlia Camarasa Castel | Assistant Set Decoration |
| Art | Txarly Gómez | Painter |
| Sound | Xavi Carrera | Boom Operator |
| Lighting | Xavier Sarasa | Gaffer |
| Camera | Salva Castellarnau | Key Grip |
| Camera | Albert Pascual | Second Unit Director of Photography |
| Crew | Sergi Subirà | Stunt Coordinator |
| Crew | Juan Serrano | Special Effects Technician |
