This is a story about D-Day, not the D-Day that took place but the one the Allies wanted Hitler and the German General Staff to believe in and plan for. The British and American intelligence services ran a brilliant deception program to fool Hitler. Unfortunately, OSS intelligence officer Tom O'Brien found himself to be a sacrificial pawn in this giant chess match. Unwilling to accept this role, O'Brien plays his own cat and mouse game with the Gestapo...