The genius scientist Shuragami has created a super organism called Biorant, using radioactive Godzilla cells that are being hunted by the international mafia. In the meantime, a volcanic eruption has revived Godzilla sleeping at the bottom of Tokyo Bay. The inhabitants of Japan are in panic – the meeting of the two monsters is inevitable and only one of them will survive. And in this case, the defense forces have prepared their new weapon “Super X-2”, with which they are ready to destroy the surviving monster.