Richard "Beast" Best thinks that Pet Week will be a disaster. How can he bring his dog Kissie Poo to school? She's a great dog, but she's fat and has only three teeth left. His friends will laugh their heads off. Beast isn't the only one worried about what to bring. Everyone is trying to find the best pet. Matthew doesn't think his cat Barney is going to be good enough. Jill and Dawn are outside digging for something. Beast has got to think of something fast! Luckily Pet Week has all kinds of surprises for Beast and Matthew and all of Ms. Rooney's class. And, at the end, the Polk Street kids tell how to care for their favorite pets.