In Japan, the colossal force known as Godzilla is regarded as an unstoppable force of nature. To monitor and forecast the creature's landfall, the Godzilla Prediction Network (GPN), an autonomous organization, dedicates its efforts. Concurrently, the Crisis Control Intelligence (CCI) team stumbles upon a 60-million-year-old unidentified flying object (UFO) resting in the depths of the Japan Trench. As the CCI works to retrieve and study this ancient artifact, it unexpectedly activates and ascends into the sky.
Godzilla suddenly appears in a nearby village, engaging the newly equipped Japan Self Defense Forces in a fierce confrontation, now armed with formidable Full Metal Missiles. Amidst this turmoil, a UFO emerges, driven by an insatiable desire for genetic information unique to Godzilla. In this colossal clash, Godzilla retreats into the depths of the ocean, while the UFO takes the opportunity to recharge itself using solar energy.
Yuji Shinoda, the visionary creator of the GPN, makes a pivotal discovery regarding Godzilla's regenerative abilities - referred to as Organizer G1 in the Japanese version and Regenerator G1 in the North American release. The UFO, however, manages to escape the clutches of the JSDF and aims for Shinjuku. Upon landing on the Tokyo Opera City Tower, it begins a digital scavenger hunt, infiltrating Tokyo's master computers in the quest for information about Godzilla. In response to this unwelcome digital intrusion, the atmosphere around the tower starts to alter as CCI deploys explosive charges in a desperate attempt to neutralize the threat. Fortunately, Shinoda narrowly escapes the explosion and joins his colleagues on a nearby rooftop, observing the UFO with a blend of awe and trepidation.
As if reacting to mankind's watchful gaze, the UFO issues a harrowing declaration of invasion, heralding the beginning of a new "thousand-year kingdom" on Earth. Shinoda later discloses that these extraterrestrial beings are determined to seize the regenerative properties inherent in Godzilla's DNA, intending to utilize this extraordinary power to rejuvenate their own forms.
When Godzilla reemerges, it faces an unnerving adversary: the UFO once more. However, this time, the extraterrestrial foe proves to be more than a mere annoyance; it presents a serious challenge that subdues Godzilla and absorbs some of its DNA. The aliens subsequently use this genetic material to transform themselves outside of their spacecraft into a colossal being called Millennian, a creature seemingly possessing the very essence of Godzilla itself. Yet, the Millennian's attempt to harness Godzilla's might results in a grotesque transformation into Orga. As Godzilla recuperates from its prior defeat, it sets its sight on both the UFO and its monstrous decedent.
Having assimilated Godzilla's regenerative traits, Orga emerges as nearly indestructible and retaliates by extracting even more of Godzilla's genetic material to create a flawless clone of itself. Furious, Godzilla breaks away from its constraints and unleashes a devastating atomic breath, incinerating Orga's upper body and ultimately sealing its fate. Back at CCI headquarters, the authorities are left in shock as their leader, Mitsuo Katagiri, meets an unfortunate end when Godzilla's rampage inadvertently crumbles the roof of the building where he was observing the chaos alongside Shinoda.
As the aftermath settles, those remaining on the rooftop are left to contemplate the true essence of Godzilla and its relationship with humanity. This theme strikes a chord with Shinoda, who poignantly reflects, >“Godzilla exists in us,” serving as a haunting reminder of the potential for our creations to evolve beyond our control. As Tokyo spirals into utter chaos, it becomes evident that Godzilla transcends the role of a mere monster; it symbolizes humanity's darker urges, animated by the very ambition and arrogance that birthed it.
