Dawn, the newest member of the Baby-sitters Club, gets more than she bargained for when her first job turns into a disaster and she has problems with Kristy.
Brothers Lincoln and Hudson Dupré go on imainary adventures that often wreak havoc in the real world and conspire to undermine their newest babysitter.
At the urging of a very artistic new girl who encourages Claudia to practice art instead of caring for kids, Claudia considers leaving the club and the other members give her an ultimatum.
Kristy's family moves to a new neighborhood where the kids make fun of Louie, Kristy's pet collie, who's going blind. The Baby-sitters are not going to let them get away with it.
While baby-sitting for practical joker Betsy Sobak, Claudia breaks her leg as a result of one of Betsy's pranks and wants to quit the club, prompting Kristy and the other baby-sitters to teach Betsy a lesson.