★ 7.4
★ 6.6
★ 7.6
★ 6.0
★ 6.2
★ 7.2
★ 6.8
★ 6.5
★ 5.0
★ 6.3
★ 7.5
★ 7.9
★ 7.0
★ 8.0
Unlock the secret.
The story of the WWII project to crack the code behind the Enigma machine, used by the Germans to encrypt messages sent to their submarines.