In order to raise money to rebuild a one-hundred-thousand-dollar barn, destroyed by fire, Alec returns to racing the Black.

Little Black, the pony, fails at the circus but later returns to become a popular success.

When Alec receives the black stallion's first son as a gift, he believes his dreams have come true, but Satan is a dangerous and unpredictable horse.

Pitch and Steve's secret island valley is discovered and invaded by a hard and vicious man, who is a threat to the island stallion and his band.

When his wild black stallion revolts against the routine and schedule of stable life, becoming a killer and a threat, a plane crash thwarts Alec's plans to give the Black a free run in the desert and brings danger to both boy and horse.

A plane wreck at sea separates Alec and the Black until the search for a rabid vampire bat leads the boy to Flame's island sanctuary.

When the Black is returned to Alec Ramsey, the whole racing world, including Alec himself, wonders which horse is faster: the great stallion or his son, Satan.

A boy is entrusted to attend the birth, train, and drive a blood bay colt that is the great hope of an aging reinsman who refuses to be reconciled to the fact that sulky-racing has moved from the county fair to the big night time, moneymaking raceways.

A racing accident resulting in a frightened horse and an injured driver leads Alec Ramsey and Henry Dailey to try harness racing, working a son of the Black toward the Hambletonian.

Alec Ramsay has a hard time persuading his partners to retain the girl he hires as a trainer and an even harder time convincing them to let her race the Black Stallion when Alec is suspended as a jockey.