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.

George and Harold have really done it this time--they've created a monster! She's faster, smarter, and more evil than anything the world has seen before--she's Wedgie Woman! 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.

The monstrous Turbo Toilet 2000 is determined to take revenge on George, Harold, and Captain Underpants.

A small mouse and his best friend, a giant flying robot, attempt to save the Earth when an evil Martian monkey and his mechanical creations attack.

"When we last left our hero, Max Crumbly, he had crash-landed on top of a Mighty Meat Monster pizza after taking a late night tumble through the vents at South Ridge Middle School--and he was completely surrounded by three ruthless criminals! Will Max be shredded to bits like mozzarella cheese on the hard and crunchy pizza crust of doom? Can his friend and sidekick, computer whiz Erin, help get him out of this sticky situation alive?"--Page 4 of cover....

For centuries there have been rumors of another continent on the dragons' planet -- another land far across the ocean, populated by tribes of dragons very different from those we know. But there's never been any evidence, and most dragons dismissed the rumors as fairy tales. Until now. Because it turns out the stories are true. And the other tribes are coming.

The Bad Guys, Mr. Wolf, Mr. Shark, Mr. Snake, and Mr. Piranha, want to be heroes, and they decide that the way to do it is to free the 200 dogs in the city dog pound--but their plan soon goes awry.

Led by Duncan "Gluestick" Dewey, the NERDS team uses brain power and courage rather than gadgets when they face off against supervillain Simon, his band of savage squirrels, and Albert, a middle-aged computer genius who lives with his mother.

Infuriated by the declaration that Pluto is no longer a planet, President Penguin and his penguins invade Earth and it is up to Ricky and his robot pal to defeat them--with some help from Ricky's cousin Lucy and her pets.

Still yearning to be seen as heroes, Wolf, Shark, Snake, and Piranha set out to rescue ten thousand chickens from a high-tech cage farm--but one unexpected problem is Mr. Snake himself, also known as "The Chicken Swallower."