It is a pivotal moment in the lives of The Baby-sitters Club--seven very special girls growing up in Stoneybrook, Connecticut. With most of the girls turning 13 and the summer upon them, they hope to devise a brilliant plan to make some money, have some fun and keep their remarkable friendships intact, but with new boyfriends showing up, rival girls, and long separated parents, the baby-sitters will test the fabric of their long-standing friendships. Each girl rises to the challenge in her own way and by the summer's end they discover their friendships have not only survived, they have thrived and flourished.

It is a pivotal moment in the lives of The Baby-sitters Club--seven very special girls growing up in Stoneybrook, Connecticut. With most of the girls turning 13 and the summer upon them, they hope to devise a brilliant plan to make some money, have some fun and keep their remarkable friendships intact, but with new boyfriends showing up, rival girls, and long separated parents, the baby-sitters will test the fabric of their long-standing friendships. Each girl rises to the challenge in her own way and by the summer's end they discover their friendships have not only survived, they have thrived and flourished.