As the Germans waged a brutal war across Europe, details of every Nazi plan, every attack, every troop movement were sent over radio. But to the Allied troops listening in -- and they were always listening -- the crucial messages sounded like gibberish. The communications were encoded with a powerful cipher, making all information utterly inaccessible unless you could unlock the key to the secret code behind the German's powerful Enigma machine. This tells the true story of one of the most dangerous war-time code-breaking efforts ever. While Hitler marched his troops across newly conquered lands and deadly "wolfpacks" of German U-Boats prowled the open seas, a team of code-breakers, spies, and navy men raced against the clock to uncover the secrets that hid German messages in plain sight. Victory -- or defeat -- in World War II would hinge on their desperate attempts to crack the code.
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