Piper Jones has always loved horses, but little did she know what would happen when she and her best friend, Nancy tried to help a neglected pony. When all the adults in her life can't or won't help, Piper and Nancy take matters into their own hands. They must find a safe haven for the pony and protect it from its cruel owner. A little old lady from Piper's past steps up to help and a suspected liar proves he's not a bad guy at all. But as the girls try to solve a mystery involving the suspicious owner, will they be forced into crime themselves in order to save their new-found pony friend?