In 1940s Europe, a group of Allied spies try to track down a dangerous force that seems to jump from body to body, leaving nothing behind but a bloody trail and questions.

Europe, December 1942. The global conflict has reached a fever pitch. The Nazis are at the height of their power, but the Allies have had their first victories both in Stalingrad and in the Pacific. Never has the war's outcome been so much in doubt. Amidst this chaos, the destinies of several men will cross through a project code named "Legion," which consists of a series of horrific tests that a young Romanian girl with apparent supernatural abilities must undergo. Her 'skills,' if fully exploited by the Nazis, would give them unimaginable power...