Salvador tells the story of a father who discovers that his daughter belongs to a neo-Nazi group, which he must approach in order to try to rescue her and understand what led her there. During a violent confrontation arranged between the radical fans of two football clubs, Salvador Aguirre, an ambulance driver, rescues his daughter Milena, injured and a member of the ultra-group, which defends racist, violent, and homophobic values, completely opposed to those he instilled in her.