Agamemno reaches Earth as the incredible event begins! Gathering some of the JLA''s greatest foes Lex Luthor, Sinestro, the Penguin, Catwoman, Mr. Element, Dr. Light, Chronos, Black Manta, and Felix Faust to help him in his plan to conquer the Earth, Agamemno switches the minds of the villians with those of their nemeses! Can the heroes foil the plot before the would-be conqueror prevails?