Decades ago, a being known as the Giant of Light joined together with Shin Hayata of the Science Special Search Party to save Earth from an invasion of terrifying monsters called Kaiju. Now, many years later, those dark days are fading into memory, and the world is at peace. But in the shadows a new threat is growing, a danger that can only be faced by a new kind of hero--a new kind of Ultraman...

Shinjiro, Moroboshi, Hokuto, Jack, Taro, and even Shin Hayata--the first Ultraman--have all come together in New York City for the ultimate showdown with the forces of the Star of Darkness! Can Moroboshi's brother be saved? Will the idol Rena Sayama make it through this all-out battle? And what is the Star of Darkness's ultimate plan? The winners will know the answers...