Atout cœur à Tokyo pour OSS 117

The film was shot on Japanese locations and featured action scenes arranged by Hunebelle's stunt coordinator Claude Carliez with production design by Max Douy.

OSS 117's superior, Mr Smith briefs him that The Organisation has informed the U.S. State Department that they have a missile that can strike its target undetected and demand $100 Million Dollars as extortion to not use the weapon.

OSS 117 places a covert listening device inside Eva's dress and arranges to monitor her when she meets her blackmail contact.

In attempting to follow her, OSS 117 ends up visiting a strip club, has a fight with a large martial arts expert and meets a Japanese bar girl.

On board he discovers a control room that sends the miniature fighters (that are atomic weapons) to American military bases where due to their size they are undetected by radar.