Dubois's photos confirm that the Soviets are placing missiles in Cuba. Devereaux, despite his wife's accusations of infidelity, flies to Cuba. His mistress, Juanita de Cordoba (Karin Dor), was the widow of a "hero of the Revolution," which enables her to work undercover in the resistance. Upon his arrival, Devereaux finds Parra, another of her lovers, leaving Juanita's mansion. Devereaux asks Juanita to take photographs of the missiles. Juanita's loyal domestic staff, Carlotta and Pablo Mendoza, pose as picnickers and photograph the missiles. Pursued, the two hide the incriminating film before they are captured.