Two American Counter-Intelligence Agents, Josh Sheridan and John Cook are sent to infiltrate a Nazi submarine U-398, which is transporting enriched Uranium to Germany’s ally, Japan. The two men capture the sub and verify that the Uranium is sufficiently enriched to make a A-bomb.
Within twenty four hours after the mission on the sub, the two men are sent to the Kaiser Wilhelm Institute in Dahlem, a suburb of Berlin. Their orders are to capture the enrichment process inventors and the ultracentrifuge. Their team contains a Soviet Mole. They have six days to complete their mission before the Red Army surrounds Berlin and cuts off their escape.