It's the first day of kid school for Sammy and the first day of puppy school for Sunny. They both feel nervous, but they end up having a great time-- making friends, playing and napping, and learning all sorts of new things.

That afternoon, they tell Mom and each other all about day one, Sammy with words and Sunny in his own special way. But what will happen on day two? Sammy wonders. And readers are in for a very funny surprise!