"When Kristy Thomas has the great idea to form a baby-sitters club--a chance to earn money and spend time with her friends, all while doing something they each love to do--she has no idea how much the club will change everything. Crank calls, uncontrollable toddlers, wild pets, untruthful clients . . . running a business is hard work! Kristy and her co-founders, Mary Anne, Claudia, and Stacey, are sure they can handle anything. But only if they stick...

The Baby-sitters are anxious to make money for their upcoming trip to Hawaii and enlist the help of Dawn's brother Jeff and the Pike triplets, but the boys turn out to be more trouble than they are worth. When Dawn and the Babysitters Club accept Jeff and the Pike triplets as baby-sitters-in-training, they find the boys are not quite old enough to take their responsibilities seriously.