When Harold and George turn fourth-grade teacher Ms. Ribble into the evil Wedgie Woman, she gives the wedgie of doom to unsuspecting people who stand in her way--including principal-turned-superhero Captain Underpants.

Klappentext

George and Harold have created the fastest, strongest, most evil monster the world has ever seen--and her name is Wedgie Woman! With her robots and ravenous robo-claw, she is on a mission to take over the world and give a whopping wedgie to anyone who stands in her way--including Captain Underpants. Illustrations.

Zusammenfassung
George and Harold are having a normal kind of week. Yesterday they found out they were going to flunk fourth grade. Today they've created an evil, super-powerful monster. The Wicked Wedgie Woman is on a mission to take over the world ... and she'll give a whopping wedgie to anyone who stands in her way! Watch out!