Superman's secret identity has only ever been known to a select few. That all changed the day Manchester Black, a gifted telekinetic, uncovered Clark Kent's alter ego, setting in motion one of the hardest days in Superman's life. Looking to avengehis prior defeat at the hands of Superman, Manchester Black amasses an army of super-villains. Over the course of 24 hours, Black's army of villains systematically attacks all those close to Superman until they meet in an epic showdown.