Enigma

In March 1943, the best minds in England have gathered at Bletchley Park and face their worst nightmare: the Nazis have changed the code key for the Enigma machine! Since they're unable to monitor the Nazi U-boats' communication, the clock is ticking for an allied convoy crossing the Atlantic with 10,000 passengers and vital supplies. Allied command looks for help from Tom Jericho (Dougray Scott), a brilliant young mathematician and code breaker. Unknown to his colleagues, Jericho has another equally baffling enigma of his own to unravel: Claire (Saffron Burrows), the woman he's obsessed with, has disappeared just when authorities suspect there may be a spy at the Park.