When Josephine Peebles asks Abby to look after her two rabbits, Binky and Marbles, Abby hops at the chance but Tess, Abby's little sister and partner in pet-sitting, would rather be playing with her new twin brothers than befriending two rambunctious rabbits. Can Abby keep the business going without Tess's help, or will the boisterous bunnies bring an end to the Pet-Sitters?