As the end of school quickly approaches, and Cooper Bailey watches his perfect world slip away, his only concern is savouring every last minute of high school. For his best friend, Reid Patterson, graduation is a doorway to the future. But when a mysterious mirror-masked man begs for their help to stop a dangerous heretic, Cooper and Reid find themselves thrust into unknown worlds, wrestling with a destiny as old as time itself. As the truths about their roles in the universe unfold, their only hope is to trust each other - and learn fast!