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.
While flying to a race, Alec Ramsay and the Black’s plane crash-lands in the stormy Caribbean. Chance brings the Black to the hidden island home of the giant red stallion, Flame. Such a small island can only support one alpha male. But before the two can fight–a fight that can only result in the death of one–a new danger appears. Together, can the stallions defeat the deadly foe which threatens the lives of the entire herd of wild horses?