In 1191, fifteen-year-old Tristan, a youth of unknown origin raised in an English abbey, becomes a Templar Knight's squire during the Third Crusade and soon finds himself on a mission to bring the Holy Grail to safety.
In twelfth-century Jerusalem, orphaned sixteen-year-old Pagan is assigned to work for Lord Roland, a Templar knight, as Saladin's armies close in on the Holy City.
