A gang of thieves has jeopardized the city and even the police, whose chief urges their forces to captured the band within 48 hours. Meanwhile, band members meet in a cafe run by a widow and her daughter and her suitor, Cantinflas, who maintains a scuffle with the robbers running all at the station. Since then, Cantinflas become a member of the police force for special missions.
| Directing | Miguel M. Delgado | Director |
| Sound | Rafael Hernández | Original Music Composer |
| Production | Santiago Reachi | Producer |
| Writing | Miguel M. Delgado | Screenplay |
| Sound | Howard E. Randall | Sound Engineer |
| Camera | Gabriel Figueroa | Director of Photography |
| Directing | Felipe Palomino | Assistant Director |
| Sound | Rafael Ruiz Esparza | Sound Engineer |
| Production | Armando Espinosa | Production Manager |
| Writing | Jaime Salvador | Story |
| Editing | Emilio Gómez Muriel | Editor |
| Art | Jorge Fernández | Art Direction |
