Times are tough at Mercy Ranch, Carlotta Mancini's stable for retired or abused horses. This means, unfortunately, that Carlotta has to sell a few horses, starting with Sheila, a beautiful Black Forest Shire mare. In doing so she's going to break the heart of Sheila's caretaker, Cheryl, and set off a chain reaction of events that will rock the world of all the kids and horses at Mercy Ranch. Will peace ever be restored? Once Ricki, Diablo and...