The Great Alone is a feature length independent documentary film that tells the inspiring comeback story of Iditarod Champion Lance Mackey. The Great Alone is a feature length independent documentary film that tells the inspiring comeback story of Iditarod Champion Lance Mackey. The Great Alone is a feature length independent documentary film that tells the inspiring comeback story of Iditarod Champion Lance Mackey. The Great Alone is a feature length independent documentary film that tells the inspiring comeback story of Iditarod Champion Lance Mackey.