and defeat Captain Blunderpants, saving their grandchildren. George then notes that their grandparents had drunk the rest of the Extra-Strength Super Power Juice earlier. However, Evil George and Evil Harold appear and plan to use the Shrinky-Pig 2000 on George, Harold, and their grandparents, but Harold uses reverse psychology and claims they can go right ahead as they are holding the device backwards. Evil George and Evil Harold believe this and turn the Shrinky-Pig 2000 around before activating it, resulting in themselves being shrunk. After punishing the evil twins by spanking them, George and Harold's grandparents fly off for a romantic dinner, George and Harold de-hypnotize and shrink Sulu back to normal, and then take Evil George, Evil Harold, and Captain Blunderpants back to their own universe into the Purple Potty. Harold states everything had worked out perfectly, but then two policemen arrive to arrest them because they think they are the evil George and Harold who robbed a bank with Captain Blunderpants and stated that it looks like they are going to jail for the rest of their lives. A bummed Harold remarks that things cannot get any worse despite George's earlier warnings. Suddenly, a robotic pair of pants appears, piloted by Professor Poopypants (who changed his name to Tippy Tinkletrousers at the end of Captain Underpants and the Perilous Plot of Professor Poopypants). When the cops laugh at Tinkletrouser's name, he freezes them with his Freeze Beam 4000 and begins chasing George, Harold, Crackers and Sulu. Comics Comic 1: The Preposterous Plight of Captain Blunderpants (by evil Harold and George) The alternative boys hypnotize nice Mr. Krupp into becoming Captain Blunderpants to steal things for them. One day, he is chased by an angry cop for stealing a pizza and is involved in a truck accident, mixing chemicals with peanut butter that give him superpowers. He flies to the evil twins with their pizza. From that point, Nice Mr. Krupp turns into Captain Blunderpants by getting his head wet and de-hypnotized by the snap of a finger. Comic 2: Adventures of Boxer Boy and Great Granny Girdle (by the real George and Harold) One day, a UFO lands on Earth and opens a store that trades improved Robo-Geezers for real grandparents, which everyone but George and Harold does. One day, their grandparents sneak into the factory and find the other grandparents inside a "slaves room", along with superpower