Justice League Vol. 2 (comics)

Introducing…the United Order! This all-new all-star group of alien warriors representing all voices in the newly formed United Planets comes to the new Justice League looking for help. The biggest threat to the universe is on the loose, and all roads lead to…Superman. As the Justice League heads to deep space, back on Earth, Checkmate breaks into the Hall of Justice looking for clues to Black Canary’s secret affiliation. All this, and Black Adam declares himself leader of the League. Collects Justice League #64-71.