Thunderhead, Son of Flicka

Ken McLaughlin's mare Flicka gives birth to an all-white colt that, unknown to Ken's dad, was actually sired by a neighboring rancher's thoroughbred racehorse, Appalachia. Ken trains Thunderhead as a race horse, but the colt suffers an injury during his first race, ending his racing career. Meanwhile, the Albino, a wild stallion that has been raiding local ranchers' herds for years, kills Banner, putting the McLaughlin family near bankruptcy.