A 'World Without Superman' is a very dangerous place, indeed, and only the all-new Nightwing and Flamebird stand between the good (and not so good) folks of Earth and an impending shadow of doom! Eisner Award-winning writer Greg Rucka (FINALCRISIS: REVELATIONS) teams with rising star Eddy Barrows (TEEN TITANS) to kick off a bold new era for ACTION COMICS!