Principal Krupp once again turns into the superhero Captain Underpants in order to save the world, and Jerome Horwitz Elementary School, from the evil talking toilets and the Turbo Toilet 2000.
When naughty George and Harold hypnotise their headteacher, they accidentally create the greatest superhero in the history of their school -- Captain Underpants! His true identity is so secret that even HE doesn't know who he is... but he's fighting for truth, justice, and all things pre-shrunk and cottony!! If you're a naughty villain like the diabolical Dr Diaper, watch out! Captain Underpants has wedgie-power on his side, and he's coming your way