In 1945, as the war in Europe ground to a halt, the largest submarine in the German navy was headed to Japan, carrying the plans, fuses and enough raw materials for a dozen nuclear bombs. Time had run out for experimental testing. This is the true story of a daring submarine captain and an Air Force general who defied Nazi orders, delivering their nuclear payload to the Americans instead of the Japanese - a course of action that very well may have changed the outcome of the war in the Pacific, saved millions of lives, and altered the course of modern history; a story lost in top secret files and documents - until now.