Pilkey, Dav

Presents puzzles and other activities, including jokes and comics, featuring George and Harold.

While sitting in detention, George and Harold accidentally create an army of evil talking toilets, and Principal Krupp's alter ego, Captain Underpants, has to save the world from it.

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

Captain Underpants and his friends, having dispatched Melvin Sneedley, the Bionic Booger Boy, must join the fray again when they realize they have forgotten about Sneedley's sidekicks, the Robo-Boogers.

Crackers and Sulu, the Bionic Hamster, finds themselves in a backwards universe where George and Harold's own evil twins rule the school with the help of the wicked Captain Blunderpants.

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.

"[Georges] and Harold have created a new hero who digs into deception, claws after crooks, and rolls over robbers. When Greg the police dog and his cop companion are injured on the job, a life-saving surgery changes the course of history, and [Super Chien] is born. With the head of a dog and the body of a human, this heroic hound has a real nose for justice. But can he resist the call of the wild to answer the call of duty?"--Amazon.com.

When George and Harold hypnotize their principal into thinking that he is the superhero Captain Underpants, he leads them to the lair of the nefarious Dr. Diaper, where they must defeat his evil robot henchmen.