Agent Joaquin recalls his latest mission while lying wounded in an ambulance: Joaquin has infiltrated into a band of smugglers. When the villains learn the truth about him, they kidnap Jouqin's fiancee. Santo comes to her rescue and fights the band.
| Directing | Joselito Rodríguez | Director |
| Production | Jesús Alvariño | Co-Producer |
| Production | Jorge García Besné | Producer |
| Production | Carlos Garduño G. | Co-Producer |
