George and Harold are not bad kids. They just like to "liven things up a bit," so that they have fun, but also all their classmates at school. Unfortunately for them, their kind acts often get them into BIG trouble. And when Professor Klana K. Katroulis becomes their new physics teacher... well, then George and Harold almost cause a bloodthirsty, maniacal, insane scientist dressed in a giant robotic suit to take over the planet! Who will put an end to Professor Katroulis's nefarious crimes? This is a mission for the one and only... CAPTAIN UNDERPANTS! INCLUDES FLIP-O-RAMA! The world-famous groundbreaking technique that allows you to bring action scenes to life!