A Nazi spy has stolen a gas mask filter of formidable efficiency in Paris. Two agents from the 2nd office have the task of going to take him back to Berlin.

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Main Cast: Roger Duchesne, Jules Berry, Renée Saint-Cyr, Suzanne Desprès, Pierre Renoir, Gina Manès, Laure Diana, Foun-Sen, Jean Debucourt, Pierre Finaly

Director: Léon Mathot

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