Dexter already knows everything there is to know about kindergarten. His big sister, Jessie, went there too, and she's told him all about it. So Dexter is not scared. Not even a little bit. Nope. Not at all. But his stuffed dog, Rufus, is scared. Actually, he's terrified. But Dexter-er, Rufus- has nothing to fear: As he'll soon find out, kindergarten rocks!