JLA #20

The entire Justice League — Superman, Wonder Woman, Green Lantern, and more — marches in chains across an alien landscape on this striking 1998 cover, penciled by Howard Porter and inked by John Dell and Porter himself. Herding them at gunpoint is a red-and-white armored figure wielding an enormous rifle, his expression fierce with authority. Mark Waid's "Mystery in Space" arc promises big cosmic stakes, and this image of Earth's greatest heroes reduced to prisoners sets the tension perfectly.