Operation Thunder (French: Opération tonnerre) is a 1954 French spy thriller film directed by Gérard Sandoz and starring Blanchette Brunoy, Jean-Pierre Kérien and Howard Vernon.

[1] [2] The film's sets were designed by the art director Claude Bouxin.

While military manoeuvres are taking place in a small town in Provence, foreign spies attempt to steal important secret documents.

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