When United States President Lex Luthor uses the oncoming trajectory of a Kryptonite asteroid to frame Superman and declare a $1 billion bounty on the heads of the Man of Steel and his "partner in crime," Batman, heroes and villains alike launch a relentless pursuit of Superman and Batman, who must unite -- and recruit help -- to stave off the onslaught, stop the asteroid and expose Luthor’s devious plot to take command of far more than North America.