Arthur has crushed Lancelot's rebellion, but at a cost. Guinevere's betrayal has left him reeling, and chaos threatens to engulf Britain. As the battle draws close, he prepares to fight his way to victory and win back the woman he lost. But in the final journey of the warlord, the intrigues of Mordred, now the adult heir to the throne of Britain, and the magic of the priestess Nimue could be Arthur's downfall.