Billie and her beautiful gray gelding, Valentine's Kiss, are three-day eventing naturals--winning every regional trial they enter. But suddenly, Billie loses interest in the sport and avoids training with her beloved horse. While her rivals say that she's lost her nerve, the truth is that Billie witnessed a terrible accident during her last cross-country event, in which the horse broke its leg, and she's terrified that the same fate could befall Valentine's Kiss. A new trainer makes Billie face her demons and trust in her horse's exceptional ability.