Cornelius Fillmore, a former delinquent turned hall monitor, tries to eliminate crime in X Middle School. Joining Fillmore is his rookie partner Ingrid Third, the new girl at X. They try to fight against crime and corruption in the mean halls of X Middle School.
Fillmore is given a license to go out and track down Eric Orben, the main suspect in poisoning Guildenstern, the Science Department's tarantula mascot, who has escaped into the city.