Batman recruits He-Man in the ultimate fight against Superman's dictatorship on Earth! But as He-Man forms an alliance with the heroes of Injustice, his own home of Eternia faces a major threat! Teaming up with Batman against Superman, He-Man and his new allies face dangerous and familiar enemies in a battle where no world is safe! As Batman plans an invasion of the Oracle to stop the regime's suicide squads from terrorizing the populace, He-Man wanders an Earth city (in disguise) hoping to understand more of the difficulty they'll face. Meanwhile, back on Eternia, Zatanna and Swamp Thing are horrified to discover that someone else from their universe has crossed over! Things seem truly dire on Earth when He-Man learns that his own home is in peril--from Darkseid!