"Friends and pranking partners Miles and Niles face a tough challenge when their favorite goat and nemesis, Principal Barkin, is replaced by his stern, no-nonsense father, Former Principal Barkin, who turns the school into boot camp"--

Attending high school in Steamboat Springs is Ida Bidson's dream--it's her next step toward becoming a teacher and her best shot at escaping a life of milking cows. It's 1925, and from using telephones to attending movies, Ida is thrilled by her new experiences in Steamboat. She and her school friends even form a club, the Secret Sisters, to celebrate everything modern. But when they accidentally antagonize the strict, traditionalist principal, Ida's...

George and Harold have really done it this time-- they've created a monster! She's faster, smarter, and more evil than anything the world has seen before--she's Wedgie Woman! With the help of her horrible robots and her horrendous hairdo, Wedgie Woman is on a mission to take over the world, and she'll give a whopping wedgie to anyone who stands in her way--including Captain Underpants.

George and Harold's latest prank backfires, and they accidentally invent an army of terrifying talking toilets. Luckily, they know a superhero with enough snap in his waistband to save the day! This looks like another job for the amazing Captain Underpants!