The Dark Knight and the Man of Steel are close friends in the modern day-but the two weren't always such close allies. Discover how two of the World'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 #1-4 and JUSTICE LEAGUE #23.1: DARKSEID.

"The Dark Knight and the Man of Steel are close friends in the modern day--but the two weren't always such close allies. Discover how two of the World'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"--

"Batman created by Bob Kane; Superman created by Jerry Siegel & Joe Shuster."

Long before Superman fought the unstoppable monster known as Doomsday, the beast's reputation for death and destruction haunted The Man of Steel's home world of Krypton.

Who is Superman’s Joker? Writer Greg Pak (ACTION COMICS) and artist Ardian Syaf (BATGIRL) add a deadly new name to Superman’s Rogues Gallery-one that will test Superman’s strength and Batman’s mind equally!It’s the Man of Steel’s worst nightmare: an obsessed villain who knows all of Superman’s secrets and is willing to kill all of his allies in order to destroy his true target.It falls to Batman to track down this murderous madman-but with no clues left behind and no leads to follow, will this killer outwit the World’s Greatest Detective?Collects BATMAN/SUPERMAN #16-20, BATMAN/SUPERMAN ANNUAL #1 and BATMAN/SUPERMAN: FUTURES END #1!

It's an untold tale from the early days of Bruce and Clark's crime-fighting careers! A new 3-part epic from another time begins here as Batman and Superman are pitted against a menace that will test their partnership-and their friendship!

From author and artist John Byrne comes another perspective on the development of both Superman and Batman that begins in 1942 and progresses right through to 2019.