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.
as Tom Jericho
as Hester Wallace
as Claire Romilly
as Mr. Wigram
as Puck
as Logie
as Leveret
as Cave
as Baxter
as Pinker
as Kingcome
as Upjohn
as Skynner
as Admiral Trowbridge
as Villiers
as Commander Hammerbeck
as Mr. Mermagen
as Heaviside
as Kay
as U-boat Commander
as Mrs. Armstrong
as Duty Clerk
as De Brooke
as Pamela
as Land Army Girl
as Male Lodger
