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.

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

Big Nate Wright is president of P.S. 38, the after school cartooning club. When he doodles his observations in his cartoon notebook: "Mighty Jefferson Middle School always wins, " Nate decides it's time to go from zeroes to heroes! Will Nate crack under the pressure of the "Ultimate Snowdown"? Or lead P.S. 38 to its biggest victory ever?

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! With the help of her horrible robots and her horrendous hairdo, Wedgie Woman is on a mission to take over the world, and she'll give a whopping wedgie to anyone who stands in her way--including Captain Underpants.

Continues the adventures of Nate Wright as he develops a mysterious allergy to Mrs. Godfrey, wages a snowball fight, and has a disastrous run-in with Randy.

Describes the adventures of Graystripe, a former leader of ThunderClan, as he struggles between staying with his adopted Twoleg family and embarking on a quest to find his lost feline companions.

George, Harold, Captain Underpants, and Sulu the Bionic Hamster battle the three Ridiculous Robo-Boogers in an attempt to turn the Bionic Booger Boy back into Melvin Sneedly.

George and Harold are fourth-grade buddies with a penchant for practical jokes. When the boys' latest prank drives their science teacher over the edge, their clueless principal, Mr. Krupp, quickly hires a replacement: Professor Pippy P. Poopypants. Of course, George and Harold can't resist making fun of the Professor's silly name. But then the Professor retaliates by forcing everyone in town to change their own names to be equally silly, with colossal...

The students of Master Kerozen's dojo are excited about their trip to the International Martial Arts Championship, but upon arrival two of the best fighters in the school's history, Kato Hiro and Jude Jitsu, disappear.