Christina Reese has heard the story many times—Wonder was a tiny, sickly foal no one thought was worth saving. No one but Christina's mother, Ashleigh. With Ashleigh's love and hard work, Wonder went on the win the Kentucky Derby.
Now, when Wonder's last foal is born under tragic circumstances, there's little hope for her baby colt. Only Christina can see that the colt is special, just like his mother was. But will she get a chance to prove it?