The Saddle Club's number-one practical joker, Stevie Lake, has decided to reform. The only problem is, nobody believes her. Things get worse for poor Stevie when she tries to shoot a movie for schoolCinderella on horseback. After all, just because she's given up playing pranks on people, it doesn't mean she's given up wild schemes. But when no one in the cast cooperates, Stevie decides she has to revert to her old, practical joking ways . . . and then some. Watch out, Pine Hollow!