Secret Agent Francis Coplan, is given the task of finding priceless artwork stolen by the Nazis' in 1943. The trail leads to Mexico, where Coplan challenges a "secret" organization in order to re-gain the paintings.
| Production | Alfonso Balcázar | Producer |
| Writing | Jean Libert | Novel |
| Production | Robert de Nesle | Producer |
| Production | Edmondo Amati | Producer |
| Directing | Riccardo Freda | Director |
| Sound | Jacques Lacome | Original Music Composer |
| Camera | Juan Gelpí | Director of Photography |
| Camera | Paul Soulignac | Director of Photography |
