Homeschooled by his hippie grandmother, Capricorn (Cap) Anderson has never watched television, tasted a pizza, or even heard of a wedgie. But when his grandmother lands in the hospital, Cap is forced to move in with a guidance counselor and attend the local middle school. While Cap knows a lot about tie-dyeing and Zen Buddhism, no education could prepare him for the politics of public school.

On the last night of summer, Emma and her Maine game warden father rescue a small domestic rabbit stuck in a fence; the very next day Emma starts fifth grade after years of being home schooled, excited and apprehensive about making new friends, but she is paired with Jack, a hyperactive boy, who does not seem to fit in with anyone--except that they share a love of animals, which draws them together, because of the rabbit.