The Dark Knight and the Man of Steel are close friends in the modern day--but the two werenand#39;t always such close allies. Discover how two of the Worldand#39;s Finest Super Heroes met for the first time in the New 52, and the mysterious adventure that takes them to a whole new world-the world of Earth 2! The heroes of the main DC Universe meet their Earth 2 counterparts for the first time!Collects Batman/Superman #1-4 and Justice League #23.1: Darkseid
