The subterranean city Delos is on the brink of extinction as a result of the surface dwellers’ environmental damage. In order to save themselves from doom, the Delosians activated the “Berserker System” that would wipe out the surface dwellers and Ultraman Max. The 100% effective weapon is impossible to be deactivated.

Now, the human civilisation stands at the brink of extinction.

Max rushes to Earth and battles with the mechanical beast, Giga Berserker, a product of the Berserker System. While waiting for Kaito to surface, two minutes had since lapsed. With only a minute and not much power left, Max was strung up by Giga Berserker. Max’s power timer wouldn’t stop blinking, while the lights in his eyes slowly dim.

Berserker’s influence began spreading throughout the world since Max has been taken out of the equation.

Is Earth’s surface population about to be annhilated?