As a direct sequel of the original movie, the Godzilla, 55 meters tall and 25,000 metric tons, depicted in Godzilla 2000: Millennium is not related to any other Godzilla films seen previously, or to those to come.

It is unclear whether this Godzilla is the same as the original, but what is known is that he has been attacking and feeding off of Japan’s energy plants for some time. On Godzilla’s latest rampage an alien is found which attacks Godzilla and steals his Organizer G-1 (Regenerator G-1 in U.S. movie) in order to adapt to Earth’s atmosphere and becomes the monster Orga. The two monsters battle and Godzilla prevails by destroying his foe as it attempts to swallow him whole.