Walter Baumert

A young doctor has to spend a night in a lonely house near the transit highway. Unexpectedly, he witnesses East-West smuggling operations, which he manages to prevent at the last moment.

The aircraft mechanic Hans Bertram is an incorrigible apron hunter who boasts that he can get around any woman. He even makes bets on it. But then he falls in love with the new colleague, the budding engineer Helga Nonnert. He fails to conquer them by storm. After many tangles and fun episodes, she manages to heal him of his gallant frivolity.

Colonel Maratka and Major Kalasz, employees of the Czechoslovakian defense forces, are facing a difficult task. They must complete a mission that is important for the security of their country. The Prague headquarters of the state security service had previously received information from the GDR that West German military intelligence had apparently succeeded in deciphering the secret code B/13 used in the field of missile armament.