Dawn Schafer is the newest member of The Baby-sitters Club. While she's still adjusting to life in Stoneybrook after moving from sunny California, she's eager to accept her first big job. But taking care of the three Barrett kids would be too much for any baby-sitter. The house is always a mess, the kids are out of control, and Mrs. Barrett never does any of the things she promises. On top of all that, Dawn wants to fit in with the other members of the BSC, but she can't figure out how to get along with Kristy. Was joining The Baby-sitters Club a mistake?...

Kristy's mom is getting married, and Kristy is going to be a bridesmaid! The only problem? Fourteen kids are coming to town for the wedding. Kristy, Claudia, Mary Anne, Stacey, Dawn, and Mallory think they can handle it, but that's before they spend a week changing diapers, stopping arguments, solving mix-ups, and planning activities. It's the biggest job the BSC has ever had, but they'll work together to make sure Kristy's big day is a success!...