He used to be Principal Krupp, but now he's the crime-fighting, wedgie-dodging Captain Underpants, the only superhero to tackle the evil Dr. Diaper.

Just when you thought it was safe to go back in the classroom... Captain Underpants returns in Spanish He's big, he's bulky, and he's badder that ever Get ready for the amazing Captain Underpants.
Otro libro divertidisimo del Capitan Calzoncillos Jorge y Berto estan nuevamente metidos en un lio. Primero, destrozan la convencion de ciencias de la escuela con sus bromitas. Luego, por accidente, crean una armada de malvados inodoros parlantes que tratan de conquistar el mundo. Quien podra detener a las diabolicas tazas carnivoras? Esto parece una mision a la medida del Capitan...

With the help of her horrible robots and her ravenous robo-claw, 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. Will Wedgie Woman's wicked ways spell the end for our heroes?

Just when they thought they were out, it pulls them back in! Our heroes beat the Bionic Booger Boy, but they forgot about those rascally Robo-Boogers. Join George, Harold, Mr. Krupp, Melvin Sneedly, and Sulu the Bionic Hamster on an adventure that will take them into the deepest regions of outer space and back through time to the mysterious and uncharted world of the day before yesterday! It's a monster-mashin', time-travelin', nose-pickin' good time!

Spanish Title: El Capitan Calzoncillos y la feroz batalla contra el nino mocobionico; 2a parte: La venganza de los Ridiculos Mocorobots...