 Ron and Kim have to interview their heroes for a school assignment. Kim suggests that Ron interview his father, but Ron doesn t see how an actuary could qualify as a hero. Instead, Ron and Kim travel to Go City so Ron can interview Hego, one of the local superheroes. During their meeting, the city is attacked by the Mathter, a villain obsessed with mathematics. The Mathter s schemes include erasing Ron from the school s records, from his employment records, and from all other databases that record Ron s existence, and then turning Ron into anti-matter that can destroy anything he touches.