Producer Marc E. Platt brings author Susan Cooper's popular series of children's fantasy books to the big screen with this tale of a young boy (Alexander Ludwig) who discovers that he is the latest in a long line of immortal warriors. When the forces of darkness, led by the villainous Rider (Christopher Eccleston), threaten to overpower the forces of light, the young chosen one must venture out into the world to realize his destiny and ensure that evil is defeated. Ian McShane and Frances Conroy round out the cast.