Catalyst Prime

"Can a group of heroes save humanity before the clock runs out? In Catalyst Prime, the final day has arrived, and everything leads to a showdown in New Orleans. The remaining heroes, aided by villains and allies, make their last stand against the Obsidian Titan. Meanwhile, the teen heroes and a new heroine go after the source of the problem, Khrelan himself. But even if they succeed, what will be left of humanity? This action-packed adventure will keep you on the edge of your seat until the very end."