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

In trouble with their principal because of their comic books, George and Harold decide to create a new epic novel.

Irrepressible friends George and Harold create a new comic book superhero, Super Diaper Baby.

When Marco finds a rare edition of the Ooze comic book at HorrorLand, he finds that many monstrous collectors would do anything to get their hands on the comic.

Buzz creates a comic book that features Buzz Boy and Fly Guy as the superheroes.

"Deja and Josiah are seasonal best friends. Every autumn, all through high school, they've worked together at the best pumpkin patch in the whole wide world. (Not many people know that the best pumpkin patch in the whole wide world is in Omaha, Nebraska, but it definitely is.) They say good-bye every Halloween, and they're reunited every September 1. But this Halloween is different -- Josiah and Deja are finally seniors, and this is their last season...

After an encounter with a sparrow, Henry finds he is able to fly just like his favorite comic book hero HawkMan.

"Excitement and imagination run wild as Naomi, Melvin, Poppy, Gilbert, Curly, and their siblings get back to making comics with originality and laughter. But wait--have they cleaned their rooms yet?! After their chores, the rambunctious group presents even more amazing mini-comics. By working together, the baby frogs discover that small things can have a huge impact."--

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.

In three separate stories, boy detective Saxby Smart exposes a comic book counterfeiter, restores a slandered dead man's good name, and uncovers a massive case of identity theft. As Saxby notes, "I don't have a sidekick, so that part I'm leaving up to you.