Superman and Batman have defeated the menace that was targeting the Man of Steel for months, but not before he set something deadly in motion--their greatest foes have been given the means to kill Clark Kent. And for Clark, time is running out.

It's the first meeting of Supergirl and Red Hood, Steel and Supergirl and more as the competing Batman and Superman families must battle for the control of the missing Mongul's fortress.

The Dark Knight and the Man of Steel uncover a plot by the Toymaster to use a secret, potentially deadly element in his new video game, the characters created by players manifest in real life. The ultimate fighting game results--and a world-wide network of players must team up to create the most powerful, skilled Super Heroes imaginable with one goal: To kill Batman. When Batman and Superman are corned by the Toymaster and Mongul, they are pitted against on another in a battle to the death, with their only hope being the The Worlds' Finest. Collects BATMAN/SUPERMAN #5-9, BATMAN/SUPERMAN ANNUAL #1, WORLDS' FINEST #20-21.

In one of their first adventures together, Earth 2's Supergirl and Robin team up to face their world's Wonder Woman.

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.

Reign of Doomsday part 4, continued from JUSTICE LEAGUE OF AMERICA #55. Supergirl and Batman are trapped aboard the Justice League satellite with Cyborg Superman and Doomsday--and both villains want to tear them limb from limb! Continued in SUPERBOY #6.

If you take two of the biggest and best known characters in comics -- Batman and Superman -- and mix them together with a dash of intrigue and a touch of adventure this is the result!