在这部神秘岛动作/动画/奇幻/冒险片中,
King Edwin, ruler of a medieval-like Kingdom is assassinated by his brother and regent, Bragan, who has sold his soul to the devil, Kwodahn. The murder is witnessed by Prince Erwann who carries out the dying King's final orders; to take Xcalibur and hide it in a safe place. After hiding the sword, Kwodahn curses Erwann, turning him to stone. Erwann's feisty teenage daughter, Princess Djana befriends Herik, a young apprentice of the exiled Shogis, a sect of sorcerers, who has been entrusted with the Book of Life, the collected knowledge of the Shogis. Together, they retrieve Xcalibur, however upon reaching the Royal Palace, they learn Bragan has taken control of the Kingdom as regent to Arthus, the 10-year-old sovereign, too young to rule himself, and confiscated Prince Erwann's lands as his own, falsely branding him as the assassin. Unable to convince the lords or Arthus that Bragan is a traitor, Djana goes on the run with Herik, Tara - a member of the People of the Sea, often referred to as Barbarians - and Wip, a small dragon, and are branded outlaws by Bragan. Djana's resistance to Bragan's alliance with Kwodahn sparks a rebellion in the kingdom, assisted by the people of the villages of Mallory and Quinn, and (later), secretly assisted by Prince Duncan, one of the lords of the Kingdom.