A French agent, who is sent to save an atomic scientist, uncovers a plot by terrorists and a secret atomic site in Turkey.
| Actor | Role |
|---|---|
 Richard WylerCoplan | Coplan |
 Robert ManuelHartung | Hartung |
 Jany ClairHéléna Jordan | Héléna Jordan |
 Valeria CiangottiniGelda | Gelda |
 María Rosa RodríguezSheila | Sheila |
 Gil DelamareShaimoun | Shaimoun |
 Jacques Dacqmine'Le Vieux' | 'Le Vieux' |
 Robert FavartNot listed | Not listed |
| CChristian KervilleArgaz | Argaz |
 Bernard LajarrigeBruno Schwartz | Bruno Schwartz |
 Guy MarlySaïd | Saïd |
 Lionel VitrantHenchman (uncredited) | Henchman (uncredited) |