During World War II, a German university professor creates a spy ring that supplies the Allies with information about Nazi plans...
Karel Höger
Jana Brejchová
Leon Niemczyk
Stone
Ilja Prachař
Wilhelm Koch-Hooge
Hasse
Vladimír Šmeral
Radovan Lukavský
Vladimír Brabec
Bořivoj Navrátil
Vlastimil Hašek
Oldřich Velen
Otakar Brousek
