Based on the bestselling book series, this outrageous comedy tells the story of George and Harold, two overly imaginative pranksters who hypnotize their principal into thinking he’s an enthusiastic, yet dimwitted, superhero named Captain Underpants.

Fourth-grade friends George and Harold have a shared love of pranks and comic books -- and turning their principal into an undies-wearing superhero.

In this interactive special, Harold and George need your decision-making skills to stop Krupp from blowing their beloved treehouse to smithereens.

When Melvin tries to cancel Halloween, clever best friends Harold and George create their own spooky holiday -- and it's a huge success!

Christmas gets weird - really weird - after George and Harold go back in time to change up a few of their beloved holiday's traditions.