Metropolis falls. The city, what's left of it anyway, and soon the world, loses its faith in its Superman. He has no other option than to flee, and goes to the only other place he knows: Gotham. He begs for help from Bruce Wayne to side with him and prove to the people of Earth that Superman is only fighting for good, but taking such a side would jeopardize Bruce's status. He must decide to help his friend, or leave him helpless. And if he should help, does he do it as Bruce Wayne, and tarnish his reputation, or does he help as Batman, and enforce his opinion by force and risk scaring people away from the both of them? Either way, Superman discovers that he is not only vulnerable to Kryptonite, but also to his Krypto-Knight.