After a terrible car accident involving his family, 12-year-old Mark is sent to live with his strict aunt Fiona on a beautiful and remote island. Isolated from most of the world, Fiona and a park ranger are the only humans on the island which is home to a herd of wild horses. Mark must follow the rules, including the fact he is forbidden to touch the horses. But when the mother of a young colt is killed, Mark breaks the rules and begins to feed and nurture the young animal. Mark and his aunt, both, learn lessons from each other about compassion, faith and family ties.