"I FIGHT FOR THOSE WHO CAN'T FIGHT FOR THEMSELVES." - SupermanChosen by the wizard Shazam! to be the world's protector, young Billy Batson becomes the World's Mightiest Mortal. Battling alongside Superman against the nefarious Black Adam, Billy quickly discovers the challenge that all Super Heroes ultimately face, is he fighting for justice? in the extra-length short. Four more favorite DC Comics Super Heroes, Jonah Hex, Green Arrow, Black Canary and The Spectre, face challenges of their own in this collection.