Pulled to a desert island by a wild black stallion he has freed during a shipwreck at sea, then rescued by a southbound freighter, a seventeen-year-old boy befriends the horse, trains him by night, and rides him to victory in a match race.

An adaptation of Walter Farley's classic children's novel, in which an American boy is rescued after a shipwreck off the coast of North Africa by a seemingly untamable wild horse. After surviving together, they develop a bond and begin training to race once they are rescued.