Alex and Nic are excited to start fourth grade. Last year, Matheson the Bully Slayer, answered the ad found on the back of the toilet, and put an end to Alex and Nic's bully problem. After forming a friendship with the Bully Slayer, Alex and Nic are confident that this year there will be no dodge ball attacks, toilet swirlies, name calling, or any of the other nefarious methods used to bully. However, as school is about to start, a horrifying discovery will again change the lives of the students at Bill Penn Elementary...forever.