Miles Morales catapults across the multiverse, where he encounters a team of Spider-People charged with protecting its very existence. When the heroes clash on how to handle a new threat, Miles must redefine what it means to be a hero.
Best friends George and Harold scheme together a number of pranks at school involving their principal, whose alter ego is a superhero they created called Captain Underpants.
Ryan's twin sisters Emma and Kate get trapped in a comic book world. Ryan enters this realm to rescue them, facing adventures, battles, and mishaps while attempting to bring them back before his parents discover their disappearance.