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

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

Captain Underpants tells the story of two imaginative grade-schoolers who hypnotize their mean elementary school principal into assuming a secret identity of an underwear-clad superhero.

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