Retelling of the Arthurian legend starring Clive Owen and Keira Knightley, set in the dark days after the Romans left Britain. Artorious Castus and his band of Sarmatian cavalry are about to be discharged from the Roman army, but have one final task to perform - they must rescue a Roman priest and his family before the land is overrun by Saxons. But there is another danger lurking on the road to freedom - the Woads, British rebels who hate the Romans, but who are also threatened by the Saxons.