Attracted to shy Mary Anne, Logan asks to become a member of the Baby-Sitters Club and gets Mary Anne as his "checker" on his trial job, but Mary Anne is plagued by a series of embarassing episodes.

"This summer, the Baby-sitters and a whole bunch of the kids they sit for are going to Camp Mohawk! With the girls as Counselors-in-Training, and the kids as campers, it'll be just like baby-sitting--in the woods! The Baby-sitters soon discover that campisn't just nature walks and making lanyards. Dawn gets lost in the wilderness overnight. Kristy learns how to use mascara, and Mary Anne gets caught sneaking over to the boys' side of the camp. Stacey...

Since her parents' divorce, Dawn lives in Connecticut with her mother while her brother and father are in California, but after a week's vacation in sunny, healthy southern California, Dawn isn't sure she wants to return to the East Coast.

Eleven-year-old Jessi copes with pet sitting for the Mancusi family and serious dissension among the members of the Baby-sitters Club.

When she sees how much her little brother and young stepbrother and stepsister want to play softball, thirteen-year-old Kristy starts her own team, which makes up in spirit what it lacks in skill. They're lean, mean, they're the pride of Stoneybrook. Who are they? They're Kristy's Krushers! When Kristy sees how much her little brothers and sister want to play on a softball team, she starts a rag-tag team of her own. Maybe Kristy's Krushers aren't...

Mallory knows she's a good baby-sitter. She's been looking after her seven younger brothers and sisters for years. So when Kristy offers a steady job baby-sitting for the Arnold twins, Mal thinks it'll be easy money.

When her parents decide to get a divorce, Stacey must choose between staying in New York with her father or moving back to Stoneybrook with her mother.

The baby-sitters have won the lottery and the girls are going to California.

Dawn and Mary Anne are good friends, but when they become stepsisters, their relationship undergoes some changes.

Kristy is torn between her feelings for Susan, the young autistic girl for whom she baby-sits, and the sad realization that Susan will never be one of the regular youngsters.