Black Manta has opened a portal to another dimension, unleashing monsters across the land, sea, and sky. With threats appearing everywhere, the Justice League must split up and make every power count. Choose which heroes work together, how they confront the creatures, and whether to fight the invasion or investigate its source. Green Lantern, Martian Manhunter, Hawkgirl, and their teammates are ready for action, but you decide the path that could seal the Portal of Doom.