Europe is aflame. On the Iberian Peninsula the wars of the Reconquista rage across Aragon and Castile. Once again, the Moors are gaining the upper hand. Christendom is divided. Amidst the chaos comes a young knight: Arnau of Valbona. After his Lord is killed in an act of treachery, Arnau pledges to look after his daughter, whose life is now at risk. But in protecting her Arnau will face terrible challenges, and enter a world of Templars, steely knights...