Capitaine Bobette et la saga sensationnelle de Sire Caca-prout (tome 12)

George and Harold, as well as their twins, Yesterday George and Yesterday Harold, are having a good time. While the first two go to school, the other two play video games. Afterwards, they switch roles. Unfortunately, they will have to stop their little game when their physical education teacher Mr. Meaner develops a mind control method that turns students into attentive and obedient children. The fate of humanity is now in the hands of George and Harold.