Carson High seniors Scott and Davey don't have much common ground that is, until all universes begin collapsing into their school. Soon, the avowed loner and the mean girl cheerleader realize that something is very wrong, and they're the only two who are aware of what's happening. Demon versions of their teachers roam the halls, a cowboy sloth appears sporadically, and some students randomly burst into flames, while angry inter dimensional counterparts...