In 1945 an advanced type of German U-boat loaded with atomic technology en route for Japan and escorted by Japanese naval officers receives news that Germany has capitulated.

Near the end of the war a lone U-Boat is sent from Germany to Japan carrying plutonium needed for a Japanese A-Bomb. During the long sail, the officers hear from the radio that Germany had lost the war and Hitler had killed himself. The crew split between the Nazi Party members who wish to continue to Japan and those who wish to surrender.—Anonymous