After Erica critiques their comic book, George and Harold create a brand-new character -- a vampire who sucks the joy out of everything.

Rumors swirl around the shadowy Bo Hweemuth, a mysterious student with secret gifts who has the whole school living in fear.

A chocolate-pudding "incident" sends George and Harold into hiding. But there's a new principal when they come back -- and no one remembers them!

It's a race against time as George and Harold try to get Mr. Krupp fired before he can have them expelled. But first: a faceoff with the Toot Fairy!

The boys recruit kids to join the M.I.S.F.A.R.T.S. -- the Mega Incredible Search Force Adventure Rescue Team Squad -- and bring Mr. Krupp back to School.

Captain Underpants becomes a wanted man when a criminal who looks just like him starts robbing banks. Can George and Harold help clear his name?

The boys transfer to a bizarro version of Jerome Horwitz Elementary, where the teachers are nice, the kids are good ... and fun is nowhere to be found.

A final exam sends George and Harold to the Doom Dome, where they must battle Melvin -- who's been injected with powerful nanobots -- in order to pass.

Eager to get the campers out of his hair, Krupp orders them to climb Plummet Peak, where a terrifying creature is rumored to reside.

A run-of-the-mill arts and crafts session turns into an interdimensional adventure from which Harold, George and company may never return.

A fierce game of plot potato takes an unexpected twist when Melvin

Despite being terrible at the job, Krupp wants to be the camp director again next summer. That's something Harold and George simply cannot abide.