Action Comics #875 (1938)

Written by Greg Rucka
Art by Eddy Barrows & Ruy José
Cover by Eddy Barrows & Julio Ferreira
To give the full details of this story would spoil the dramatic finale of the "New Krypton" crossover, and we don't want to do that! Suffice to say, a "World Without Superman" is a very dangerous place, indeed, and 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!