Edubot 4000.Walter is tired of Dennis pulling the wool over the eyes of their teacher Mrs Creecher, so he gets his father, owner of a major company and mayor of Beanotown, to construct a robot to replace Creecher named Edubot 4000. To Dennis's dismay, the robot stops all his pranks and even perfectly catches a pea from Dennis's incredibly accurate pea shooter. When Walter too is put in detention Dennis forces Walter to give them the files from his father's company for the Edubot. Back in the den, Rubi remarks that the robot is incredibly amazing and is ahead of its time while examining the blueprints and finds an access port where they could install a virus; the only problem being that it is where on a human the bottom would be positioned...