Following the startling events of "New Krypton," Earth finds itself without its greatest protector - Superman! And this "World Without Superman" is a very dangerous place, indeed. The only thing standing between the good (and not so good) folks of Earth and an impending shadow of doom are the all-new Nightwing and Flamebird! But who are these two heroes who have taken their names from legends of Krypton's past? Read on to find out as Eisner Award-winning writer Greg Rucka (FINAL CRISIS: REVELATIONS) teams with rising star Eddy Barrows (TEEN TITANS) to kick off a bold new era for The Man of Steel! Collecting ACTION COMICS #875-879, ACTION COMICS ANNUAL #12, and materials from SUPERMAN: SECRET FILES 2009 #1.