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.

Soon after being recruited by the mysterious Mrs. Boudica to join a secret military intelligence operation, Josie, Mae, and Akiko discover their superhero abilities and use them to thwart a Nazi plot to steal the ENIAC computer.

Rescuing a squirrel after an accident involving a vacuum cleaner, comic-reading cynic Flora Belle Buckman is astonished when the squirrel, Ulysses, demonstrates astonishing powers of strength and flight after being revived.

"Danny Tozer has a problem: she just inherited the powers of Dreadnought, the world's greatest superhero. Until Dreadnought fell out of the sky and dies right in front of her, Danny was trying to keep people from finding out she's transgender. But before he expired, Dreadnought passed his mantel to her, and those secondhand superpowers transformed Danny's body into what she's always thought it should be. Now there's no hiding that she's a girl. It...

"Brad Baron and his friends discover dangerous secrets about the superheroes running their society"--

"The Princess in Black and her friends are enjoying a day of sun and sea on Princess Sneezewort's royal boat when a real, live mermaid princess emerges from the waves! Eeeeeee! Princess Posy needs their help protecting her very cute sea goats from being eaten by a very greedy kraken. But the princesses and the Goat Avenger quickly realize that fighting underwater can be tough for land dwellers, and only the mermaid Princess Posy can save the day....

A sleepy Princess in Black takes a much-needed vacation and rides her bicycle to the seaside, where she plans to nap in a hammock, but her peace is disrupted by a roaring sea monster.

A ragtag group of young superheroes takes on a powerful warrior who is transported from 4,000 years in the past to enslave the modern world.

Faith is not a regular teenager. She has flying superpowers. She's hoping she can get through her senior year in a normal way, but strange things start happening. Meanwhile, she hears rumored sightings of her ex, who was thought to have died months ago.

When Mom issues a no-gum rule, Gabby Gomez sneaks a piece of special bubble gum that turns her into a superhero.