Captivated by the story of "Misty of Chincoteague, " a woman with a horse farm in Florida raises one of Misty's descendants to become a champion show horse.
An unusual work horse raised in Vermont and known originally as "Little Bub" becomes the sire of a famous American breed and takes the name of his owner, Justin Morgan.
Follows the adventures of the Arabian stallion brought to England to become one of the founding sires of the Thoroughbred breed and the mute Moroccan stable boy who tends him with loyalty and devotion all his life.