In Barcelona, secret agent Antoine Donadieu thwarts the plans of a Nazi scientist.

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Main Cast: Jean Marais, Marisa Mell, Gérard Tichy, Howard Vernon, Jean Lara, André Cagnard, Léon Zitrone, José María Caffarel, Carlos Casaravilla, Antonio Casas

Director: Gilles Grangier

Writers: Gilles Grangier, Jacques Robert

Editor:

Cinematographer: Antonio Macasoli

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