Four misfits find themselves struggling with ordinary problems when they are suddenly pulled through a mysterious portal into the Overworld: a bizarre, cubic wonderland that thrives on imagination. To get back home, they'll have to master this world while embarking on a magical quest with an unexpected, expert crafter, Steve.

Peter Parker is unmasked and no longer able to separate his normal life from the high-stakes of being a super-hero. When he asks for help from Doctor Strange the stakes become even more dangerous, forcing him to discover what it truly means to be Spider-Man.