Charles and Lizzie Peterson love puppies. Their family fosters these young dogs, giving them love and proper care, until they can find the perfect forever home.

At Loon Lake Park, Charles and his Cub Scout friends are told that a dog has been abandoned in the parking lot. Louie, a not-so-small Newfoundland puppy, is quickly taken in and cared for by the group. Can Charles and his friends find Louie a perfect, and roomy, forever home?