"Stoneybrook has gone star-crazy! Derek Masters, an eight-year-old regular on a hit television sitcom, has moved to town. Everyone's wondering what a real-live TV star will be like--will he drive to school in a limo? Jessi can't believe it, but even stars need baby-sitters, and she's the lucky club member to watch Derek Masters. Even though a lot of kids at school call Derek a spoiled brat, Jessi likes him immediately. He rides bikes and eats junk...