Claudia's friendship with a new student who shares her interest in art threatens Claudia's membership in the Baby-sitters Club.

Shy Mary Anne must decide whether she has to break up with her handsome boyfriend to regain her independence.

Twelve-year-old Jane, who lives at the beach in a run-down old house with her mother, two brothers, and sister, has an eventful summer accompanying her pastor on bible deliveries, meeting former boyfriends of her mother's, and being coerced into babysitting for a family of ill-mannered children.

When Mary Anne suffers from a run of bad luck after throwing away a chain letter, her Baby-sitters Club friends try to help.

Dawn tries to give herself a new image by changing her hair, makeup, clothes, and personality, but then she worries about whether her friends and her pen pal Lewis will like the new Dawn.

The members of the Baby-sitters Club think they can handle a young practical joker, but when one of her tricks causes Claudia to break her leg, the girls know they must teach their new charge a lesson.

While staying with her father at a tree-planting camp in the Canadian wilderness, twelve-year-old Stevie discovers that she can combine babysitting with detective work.

Each member of the Baby-sitters Club sponsors a different girl in the Little Miss Stoneybrook competition, as Dawn also tries to cope with the break-up of her family after her parents are divorced.

Feeling isolated as the only African American in her sixth grade class, Jessi gains a sense of belonging by participating in the Baby-sitters Club, learning sign language in order to communicate with a deaf child, and dancing in a ballet.

Now that Dawn and Mary Anne are friends and sisters, their relationship is not everything they dreamed it would be.