A group of bandits operating illegal mines kidnap Don Rosendo, who has discovered a mine containing a highly valuable metal. The Lone Rider comes to the aid of Don Rosendo and Rosita, capturing the bandits.
| Actor | Role |
|---|---|
 Demetrio GonzálezDemetrio / Jinete solitario | Demetrio / Jinete solitario |
 María RivasRosita | Rosita |
 Pedro de AguillónNot listed | Not listed |
| CCarlos SuárezNot listed | Not listed |
| JJosé DupeyrónNot listed | Not listed |
 Rafael EstradaJorge, comisario | Jorge, comisario |
| LLupe AndradeNot listed | Not listed |
| MManuel CasanuevaDon Rutilo | Don Rutilo |
| SSalvador TerrobaNot listed | Not listed |
 Pedro Ortega 'El Jaibo'Not listed | Not listed |
| IIgnacio VillalbazoNot listed | Not listed |
 Humberto RodríguezNot listed | Not listed |
| RRamón SánchezNot listed | Not listed |
| FFelipe CuetoNot listed | Not listed |