Captain Underpants and the invasion of the incredibly naughty cafeteria ladies from outer space (and the subsequent assault of the equally evil lunchroom zombie nerds) / Pilkey, Dav

Principal Krupp, in the guise of his alter ego Captain Underpants, tries to come to the rescue when three evil space aliens infiltrate Jerome Horwitz Elementary School and turn everyone into lunchroom zombie nerds.

Only Captain Underpants can stop the three evil space aliens who have invaded Jerome Horwitz Elementary School and turned everyone into lunchroom zombie nerds.