Batman leaves the team and the JLA is at each other's throats! As Vixen tries to affirm her role as team leader and fill the vacuum, the villain Prometheus arrives in Happy Harbor to prove to the world that the Justice League must be destroyed and lay waste to the heroes once and for all. And he's brought a friend. Steve Orlando (MIDNIGHTER, SUPERGIRL) and artist Andy MacDonald (TEEN TITANS: EARTH ONE VOL. 2) bring together Batman, Black Canary, the Ray, the Atom, Vixen, Killer Frost and Lobo in what is one of the most offbeat and compelling lineups the Justice League of America has ever seen. Collects JUSTICE LEAGUE OF AMERICA #18-21 and ANNUAL #1.