Medieval knight Behmen undertakes a mission pitting him against a devious witch and making him the last hope for the world against an ancient and dark force. His faith broken by years of battle as a crusader, Behmen returns to central Europe to find his homeland decimated by the Black Plague. While searching for food and supplies at the Palace at Marburg, Behmen and his trusted companion, Felson are apprehended and ordered by the dying Cardinal to deliver a young peasant girl -- believed to be the witch responsible for the Plague -- to a remote abbey where her powers can be destroyed. Behmen agrees to the assignment but only if the peasant girl is granted a fair trial. As he and five others set off on this dangerous journey, they realize with mounting dread that the cunning girl is no ordinary human, and that their mission will pit them against an evil that even in these dark times they never could have imagined.