High school principal Jefferson Pierce is used to teenagers acting like monsters-but not when they start turning into actual monsters! Even Scooby and the gang might have their hands full with an entire horrifying homecoming, but fortunately, they're not alone-because Jefferson Pierce is secretly the electrifying hero Black Lightning! Is it all a plot by Tobias Whale and his ruthless gang, the 100? Or is Garfield High doomed to become the Ghoul School?