After the darkest hour in the history of DC Universe, Superman, Batman and Wonder Woman meet to once again choose who among Earth's greatest heroes will make up the new Justice League of America. But while they meet in secret to decide the fate of the team, dark forces move against their friends and allies.

Then, the Justice League of America, featuring Superman, Batman, Wonder Woman and more--and the Justice Society of America, including Hawkman, Wildcat and others, join forces in this stunning graphic novel! The JLA has discovered that several members of the Legion of Super-Heroes from the 31st century are in the present. With the help of the JSA, Superman and his team must track down all seven Legionnaires to discover why these heroes of the future have traveled back in time!

Collects Justice League of America (2006) #0-12 and Justice Society of America (2006) #6-7.