(First story) In order to prove to his parents that he is ready to take care of his own dog, Arthur starts up a pet business. His first client is the notorious "Perky", a canine who comes with her own pet food recipes and a long list of pet peeves. (Second story) D.W. wants to be just like Arthur. How can Arthur pursuade D.W. that the world is only big enough for one Arthur? (Third story) Binky volunteers to look after Francine's cat, Nemo, for the weekend.