Three Polish mathematicians are the first to crack the sophisticated Enigma code used by the Germans just before the Second World War. They build replicas of the Enigma machines and manage to get two of the machines to the British and French code-breakers before the German invasion of Poland in 1939; they ask that recognition be given to their work at the end of the war. After the invasion, the Polish cipher bureau escapes and continues their decoding in Algeria and unoccupied France.
Tadeusz Borowski
as Marian Rejewski
Piotr Fronczewski
as Jerzy Rózycki
Piotr Garlicki
as Henryk Zygalski
Tadeusz Pluciński
as inżynier Antoni Palluth
Janusz Zakrzeński
as Col. Gwido Langer
Andrzej Szczepkowski
as Col. Gustave Bertrand
Wojciech Duryasz
as Mechanic Edward Fokczynski
Andrzej Lajborek
as Heinz Hoger
Jerzy Kamas
as Commodore Alistair Denniston
Ewa Borowik
as Irena Olanska
Halina Golanko
as German spy
Jolanta Wołłejko
as Jadwiga Palluth
