When Warren has to take care of the class hamster, Chewy, for the weekend, he and his best friend, Dragon, think it will be easy, but Dragon complicates things when he thinks Chewy would like more space to roam and opens his cage.

Warren has been invited to a birthday party by one of his new classmates, so it's birthday present shopping time! And the first toy he spots, a Deluxe Volcano Building Set Supreme is perfect . . . for himself. It's too much money, his mother tells him, choosing another gift for his classmate. But Warren can't stop thinking about exploding volcanoes, and soon he and Dragon are thinking up ways to make money and buy the volcano setfor themselves. A...