Action Comics Vol. 1 (1938-2011; 2016-) #889

Plot

With the fate of both New Krypton and Earth weighing on their young shoulders, are Nightwing & Flamebird prepared to make the ultimate sacrifice? And in the co-feature, Captain Atom has managed to find a way back to Mirabai's world, intent on confronting the woman who made him a tool of destruction—but what stunning revelation awaits him there?