Kristy decides to form a Baby-sitters Club with her friends, Claudia, Mary Anne, and Stacy, but they run into unexpected problems which threaten to break up the club.

Stacey McGill is moving back to New York, and her friends must face the sadness of saying good-bye, hunt down the perfect farewell gift, and take on the difficult task of filling Stacey's place in the Baby-sitters Club.

Tasked with watching over Princess Lolli and Prince Scoops new baby, Berry the Fruit Fairy must figure out a way to save the day when the young princess is stricken with cocoa fever.

Stacey starts dating Robert, a cute basketball player, and becomes part of the popular crowd. She is asked to be a cheerleader, but she worries that if she becomes a cheerleader she might be too cool for the Baby-sitters Club.

When Stacey's best friend from New York, Laine Cummings, spends a week in Stoneybrook, she angers Stacey when she thinks that Stacey's sleep-over with the other baby-sitters is childish.

"Claudia has a sad goodbye to make. Her grandmother, Mimi, has just died. Claudia understands that Mimi was sick for a long time, but she's still mad at her grandmother for leaving her. Who will help Claudia with her homework . . . and share "special tea" with her? To keep from thinking about Mimi, Claudia spends all her free time painting and baby-sitting. She's even teaching an art class for some of the kids in the neighborhood. Claudia knows...

Eva offers to babysit for little brother Baby Mo so her parents can go sky-dancing competition, and she enlists a couple of her friends to help--unfortunately Mo proves to be a handful, eating too much candy, making a big mess, and throwing a tantrum, and she and her friends have to clean up fast before her parents get home.

Kristy feels overwhelmed by the new sponser for the Krushers, but the new girl on the block likes baseball, and kids, and may be able to help.

When Mallory discovers that she has mononucleosis, she is crushed that she must stay in bed for a long time, and the baby sitters wonder what they will do without her

It's time for an emergency meeting of the Baby-sitters Club when Mary Anne's little kitten, Tigger disappears.