George and Harold, and their doubles, Yesterday George and Yesterday Harold, have a good thing going. Two of them go to school, while the other two hide in the tree house and play video games all day - then they switch! But it turns out there"s something rotten in the state of Ohio, and it"s smellier than a pile of putrid gym socks. The boys" malicious gym teacher, Mr. Meaner, has created a method of mind control that transforms their fellow students into attentive, obedient, perfect children. Now it"s all in George and Harold and Yesterday George and Yesterday Harold"s hands!