Spain, 1937. Ramón Mercader, a young communist combatant, is recruited and trained by the Soviet intelligence service to participate in a top secret mission ordered by the ruthless dictator Joseph Stalin: the assassination of his former political rival, Leon Trotsky, who is living in exile in Mexico.
| Directing | Antonio Chavarrías | Director |
| Writing | Antonio Chavarrías | Screenplay |
| Lighting | Martí Maluquer | Gaffer |
| Directing | Alexander Dahm | First Assistant Director |
| Visual Effects | Lluís Castells | Visual Effects Supervisor |
| Directing | Carles Curt | Second Assistant Director |
| Crew | Martin Roller | Score Engineer |
| Art | Nicolás Scabini | Art Direction |
| Art | Irene Montcada | Art Direction |
| Costume & Make-Up | Julien Boisselier | Wardrobe Supervisor |
| Crew | Olaya Marcos | Video Assist Operator |
| Crew | Alex Vázquez | Special Effects |
| Directing | Carles Velat Angelat | Second Assistant Director |
| Editing | Francisco X. Rivera | Editor |
| Sound | Biel Cabré | Boom Operator |
| Production | Mónica Marín | Production Coordinator |
| Sound | Fabiola Ordoyo | Sound Editor |
| Directing | Fernanda Plana | Second Assistant Director |
| Crew | Lluís Rivera | Special Effects |
| Sound | León Sandoval | Boom Operator |
| Art | Luisa Guala | Set Decoration |
| Sound | Òscar Senén | Orchestrator |
| Sound | Marc Orts | Sound Re-Recording Mixer |
| Art | Ariel Margolis | Property Master |
| Production | Natalia Beristáin | Casting |
| Production | Cristina Campos | Casting |
| Editing | Ernest Blasi | Editor |
| Art | Antonio Muñohierro | Production Design |
| Art | Manel Manteca | Location Scout |
| Production | Heidi Levitt | Casting |
| Sound | Fabiola Ordoyo | Sound Designer |
| Directing | María Fernanda Rivero Payán | Second Assistant Director |
| Crew | Peter Sotirakis | Translator |
| Editing | Edna Herrera | Assistant Editor |
| Sound | Edgar Vidal | Foley |
| Directing | Belén López Albert | Script Supervisor |
| Writing | Coral Cruz | Story Editor |
| Sound | Belén López Albert | Sound Editor |
| Sound | Herminio Gutiérrez | Music Supervisor |
| Sound | Marc Blanes Matas | Scoring Mixer |
| Editing | Queralt González | Assistant Editor |
| Directing | Mercè Coll | First Assistant Director |
| Production | Victoria Lorenzo | Production Coordinator |
| Directing | Miguel Lima | First Assistant Director |
| Production | Marc Álvarez | Production Manager |
| Production | Elisa Plaza | Delegated Producer |
| Production | Marta Ramírez | Production Director |
| Costume & Make-Up | Maru Errando | Makeup Department Head |
| Production | Mónica Lozano | Executive Producer |
| Production | Alex García | Executive Producer |
| Crew | Balo Bucio | Stunt Coordinator |
| Writing | Teresa de Pelegrí | Screenstory |
| Writing | Dominic Harari | Screenstory |
| Costume & Make-Up | Maru Errando | Hair Department Head |
| Costume & Make-Up | Carlos Sánchez | Makeup Designer |
| Costume & Make-Up | Mercè Paloma | Costume Designer |
| Sound | Albert Manera | Sound Recordist |
| Production | Antonio Chavarrías | Producer |
| Directing | María Beltrán | Second Second Assistant Director |
| Directing | Miguel Lozano | Second Second Assistant Director |
| Directing | Brenda Gómez Magaña | Continuity |
| Production | Irene Prats | Production Secretary |
| Camera | Carlos Somonte | Still Photographer |
| Sound | Arnau Bataller | Original Music Composer |
| Production | Àngels Masclans | Delegated Producer |
| Production | Eamon O'Farrill | Production Director |
| Production | José Luis 'Kenny' Serratos Pineda | Production Assistant |
| Art | Eva Mazo | Property Buyer |
| Editing | Jordi Xercavins | Assistant Editor |
| Production | Mónica Lozano | Producer |
| Camera | Guillermo Granillo | Director of Photography |
| Sound | Fabiola Ordoyo | Sound Supervisor |
| Directing | Miriam Go | Second Second Assistant Director |
| Sound | Kiku Vidal | Foley Artist |
| Production | Antonio Chavarrías | Executive Producer |
| Camera | Lucía Faraig | Still Photographer |
| Lighting | Froylán López | Gaffer |
| Production | Victoria Lorenzo | Post Production Coordinator |
| Editing | David Gallart | Editor |
| Sound | Yisel Pupo | Dialogue Editor |
| Sound | Santiago Núñez | Sound Recordist |
| Costume & Make-Up | Julien Boisselier | Wardrobe Supervisor |
