The Black's life is threatened by the only person more feared and hated than a horse thief, a barn burner. A young woman named Nicole Berthier was blamed for the barn burning.
The Black is kidnapped by an excessive animal rights activist and will be shipped back to the Arabian Peninsula unless Alec can prove The Black wishes to stay with him. The Black finally comes back to Alec's possession after a while.
A rival stable dopes the Black and the drug makes him go wild. The owner of the rival stable hires a hunter to take out the Black. Alec and Nicole are frantically searching for the Black, hoping to reach him before the hunter does.
Alec and Henry are finally able to prove that there was a fourth stallion instead of three that began the lineage of Arabians. While Henry is away, Alec is being pursued by people hired to take him out by any means necessary.