When everything goes wrong during her performance at a New Orleans horse show, a devastated Nina wonders if her difficulties might have a supernatural source and turns for support to her Pony Post friends.
When she finds some papers in her mother's dresser, Maddie suspects that her mother is being transferred again and is torn between helping her best friend and spending all her remaining time with her favorite pony.
Nina is worrying about her best friend's dwindling interest in riding while discovering that someone has been sneaking into the barn and riding Breezy without permission.
