Imaginative, eleven-year-old Gina, her mysterious new neighbor, Antonio, and their classmates are inspired by an unusual young teacher to see who they are and envision who they are meant to become.

"The kids from Mr. Terupt's fifth- and sixth-grade classes are entering their first year of junior high school. There's a lot to be excited about, but there are new challenges, too. Everyone is missing Mr. Terupt. When a fight threatens to break up the group forever, they think their favorite teacher is the only one who can help them. But the kids soon find out that it's Mr. Terupt who needs saving"--

When Professor Pippy P. Poopypants comes to Jerome Horwitz Elementary School to teach science, and he goes off the deep end because students make fun of his name, only Captain Underpants can save the school from the professor's perilous plot.