A secret band murders one of the Winter brothers, scientists, who have discovered a new explosive.
| Actor | Role |
|---|---|
| JJosep BalaguerNot listed | Not listed |
| JJulián de la CanteraNot listed | Not listed |
| SSilvia MariáteguiNot listed | Not listed |
 Ramón QuadrenyNot listed | Not listed |
 Carmen RodríguezNot listed | Not listed |
| SSuzanne RoumestanNot listed | Not listed |
| AAnita StephensonNot listed | Not listed |
| LLuis ZapeiNot listed | Not listed |