Mr and Mrs Bogbrush become the proud owners of a fine litter of puppies and they are overjoyed. However, their happiness is marred when a terrible smell appears in the kitchen. Even the plumber, Mr Blowovski, is unable to detect the source of the problem. When the Bogbrushes discover that two of the puppies are the culprits, they are dismayed! It seems that even the vet, Mrs Melly, is unable to find a cure. Will they ever be able to resolve the weighty problem of finding suitable homes for them?