Lex Luthor has been elected president of the United States, and he's using an earthbound kryptonite asteroid as grounds for declaring a billion-dollar bounty on the heads of Superman and Batman. Now, the two heroes must team up to save both the planet and their own necks. They can't do it on their own, but finding help won't be easy because every hero and villain on the planet is looking to collect that juicy bounty.
