When fifteen-year-old Will is rejected by battleschool, he becomes the reluctant apprentice to the mysterious Ranger Halt, and winds up protecting the kingdom from danger.

"When the city is hit by a colossal snowstorm, only one superhero can save the day. But who is this mysterious hero, and why does he disappear once his job is done?"--

When George and Harold use their traveling purple potty to travel to another dimension where the school is nice and the principal, Mr. Krupp, thinks they're funny, they meet up with their evil twins and must face their cleverest enemies ever -- themselves.

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.

Clifford uses his size to help out in many ways--saving a kitten, rescuing people from a fire, masquerading as a elephant, and supporting up a bridge so a parade can pass.

Triss, Shogg, and Welfo escape from slavery at Riftgard and are pursued across the sea toward Redwall by Princess Kurdah, Prince Bladd, and a band of freebooters who seek the rumored treasure of Brockhall. Meanwhile, Scarum and Sagax head off to sea with their friend Kroova the otter, looking for adventure, and there is something very scary lurking in the woods around Redwall Abbey.

Only the Toa Nuva can stop six newcomers from destroying the island and the Matoran who live there.

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

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.