December 1944: Private Roy Wilder and his fellow U.S. soldiers flee through the Ardennes Forest pursued Nazi storm troopers. Wilder falls as his brothers die in a hail of enemy lead. Wounded and helpless, he finds unexpected salvation as savage, unnatural howls tear the night and the full moon glistens off the blood-soaked snow. Wilder's destiny is forever changed and the Nazis face a deadly new foe.