Appleblossom is the youngest in her oppossum family, and the most timid. But she has a talent for playing dead, which serves her well when her training is finished and she must venture out on her own. She and her siblings have been warned to hide during the day, and to avoid cars, humans, and the dreaded "hairies" (aka dogs). Still, Appleblossom finds herself fascinated by a human family and their pet dog. While spying on them one day, she accidentally falls down the chimney, thus beginning her true adventure, including an encounter of the human kind: the little girl in the house wants to dress her up and keep her as her new pet. Luckily Appleblossom's faithful brothers have been watching, and they launch a successful rescue mission, which includes breaking into the house, outwitting the dog, and even enlisting their long-lost father.