On the eve of the last Crusade, two men's destinies will come together as two great civilizations go to war. Amidst conspiracy and intrigue in Europe, Will Campbell, a young knight, risks his life to recover the stolen Book of the Grail. Hidden within its pages are the heretical plans of a secret society within the Knights Templar. Meanwhile, the former slave Baybars Bundukdari and his army have taken over Egypt and Syria, and are planning a new Holy War to bring the Crusaders to their knees.