The Two Ultra Brothers' Legacy

On Planet M78 (Land of Light), Ultraman Zero and Ultraman Taiga are constantly looked down upon by the higher-ups and labeled as reckless "troublemakers" who take their duties too lightly.

Their lives are thrown into chaos when an alien Droid mysteriously breaches M78 right after their patrol, sparking outrage across the Land of Light. Facing harsh accusations and Ultra Seven's deep disappointment, Zero and Taiga are left disgraced. Only Ultraman Taro maintains unwavering faith in them. Armed with special Ultra Rings and Taro's trust, the duo ventures through the Blackhole Zone to uncover the origin of the Droid and redeem their honor.

Crash-landing on a foreign planet divided into four distinct segments (Sun, Moon, Earth, and Truth), they are forced to conceal their weakened powers under human identities-Taiga as Hiroyuki Kudo and Zero as Leito Date. Starting out as humble ice cream vendors, their exceptional skills eventually earn them positions as key defense researchers at the Earth Segment base.

However, after two years of living as humans, a rising dark threat from the Truth Segment targets the base, putting countless lives in jeopardy. To protect the innocent, Hiroyuki and Leito must risk everything by revealing their true powers. In doing so, they uncover a hidden truth about the planet's past-a revelation that ignites their spirits to make the ultimate stand.

Fighting alongside humanity, Taiga and Zero embark on an epic battle to defeat the dark forces, reunite the planet, and prove once and for all what it truly means to be an Ultraman.