Piper is a gentle dog, courageous & anxious to please. It's very unfortunate that he is bought by a grim man who tells him to 'take care of the rabbits'. Piper babysits them beautifully, which is not what his new owner meant at all, & loses him his dinner. He runs away to the big city, & saves an old lady from being run over, but he hurts his leg doing it, & the old lady is still taken to hospital. It takes persistent passers-by to find him, & take him to the vet, & all is well in the end.