The Walkers are moving to a new town, and staying with an aunt who's allergic to dogs. Too bad for Andi and her brother Bruce, who love dogs — and happen to meet a stray that needs help.
Andi wants to save it, but she can't take it home. With the help of her brother Bruce, she rescues the stray and its puppies and moves them into an abandoned house down the block. Then they check in Red Rover, an Irish setter whose owner mistreats him. And MacTavish, who begs for scraps in the school playground. And more… Andi is thrilled — she's running a dog hotel! But can she and Bruce keep the canine castle going, or will a bark give their secret away?