The Dastardly Deed of the Devious Diddlysaurus is the fifth season 2 episode of The Epic Tales of Captain Underpants.


A book report-to-comic book conversion leaves George and Harold's grades in the red zone, and they have to raise them to go to lake summer camp. The two have to think of something better than Melvin's real dinosaur, and mischief ahoy when they accidently leave their comic in dino times and Melvin's dino turns out to be Diddlysaurus, who creates chaos with his antics. When Melvin frees three more dinosaurs out to exact revenge on Diddly, mayhem is the game when the Diddly's former friends prove to be more than capable of taking out Captain Underpants.


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