Visiting the school for a routine safety inspection, a fire chief drops by the class to deliver a lesson on emergency preparedness and fire safety. An ensuing safety tour of the school is complicated by Earl, who figures that if Flying Rhino Junior High fails the safety inspection, the school will be shut down, and he will have the building all to himself! A few keystrokes later, the enviromaster has morphed the school into the most dangerous place imaginable. Suddenly, everything is in a state of disrepair, exposed wiring abounds, the cafeteria floor is covered with grease, and improperly labeled household cleaners lie about. Unfortunately, the visiting fire chief turns out to be a magnet for disaster, and our heroes have their hands full trying to keep him out of trouble and in one piece