A specter from Superman's and Batman's sons' adventure in the past comes searching for them in the present, courtesy of the immortal Vandal Savage! Can the Super Sons defeat the age-old villain before he deals a killing blow to their friend Rora? Plus, Jon and Damian rush to save yet another Justice Leaguer from the death foretold to them upon the dreaded Doom Scroll, but the Super Sons may be too late, as it seems Cyborg has already fallen victim to an attack courtesy of Grid! But remember, if Cyborg finds out the boys saved him, the Doom Scroll's curse will take the life of an innocent...