Justice League United Vol. 2: The Infinitus Saga (The New 52)

The Infinitus Saga begins as the Legion of Super-Heroes arrive with the
shocking news that the 31st century has been destroyed! Now it's up to the
Justice League United to save the future! Complicating matters is the fact that
Multi is a young innocent in the current time period, forcing the Justice League
United to stand in the Legion's way! Collects JUSTICE LEAGUE UNITED #6-10,
JUSTICE LEAGUE UNITED ANNUAL #1, JUSTICE LEAGUE UNITED: FUTURES END #1, JUSTICE
LEAGUE: FUTURES END #1.