Elsa loves her gorgeous new puppy Coco. But her family's two cats aren't so welcoming. They chase the terrified pup all over the house! And to make things worse, Coco's chewing everything, and it's stressing Mum out. Luckily, the Puppy Club is on hand to help, and soon Operation Friendship is underway, with plans to keep Coco out of trouble and help her bond with the cats. But with each day seeming to bring a new disaster, Elsa can't help worrying . . . what if Mum has second thoughts about keeping Coco?