During World War II, a group of Navy men are sent to steal Enigma (the nazis' top-secret decoding device). When their own ship is destroyed, they must secretly make their way through hostile waters in a severely damaged Nazi U-boat to safety with the device.

On May 7, 1915, just nine months into World War I, one of the largest and fastest luxury passenger liners of its day was en route home to England when a German sub blew it out of the water. Of the 1,959 people aboard the Lusitania, nearly two-thirds died. Many men, women and children were trapped inside as the great ship sinks in just eighteen minutes. Many historians believe the sinking of the Lusitania is more tragic than the Titanic disaster, because...