沙魯奈公主乘機前往日本途中,飛機突然爆炸,唯公主一人得以生存並降落地球,可是其意識轉為有預言能力的金星人,這金星人的使命就是要拯救將要滅亡的地球,金星的文化科學被宇宙怪獸 奇古度拉破壞淨盡,奇古度拉的下一目標就是地球,可是地球怪獸哥斯拉跟拿頓卻互相仇恨,並沒有助人類的打算,魔斯拉唯有出動苦勸,望說服牠兩對抗奇古度拉。A princess from a small Himalayan country becomes possessed by the spirit of a Venusian (a Martian in the American version) and escapes a plane just as it explodes. As this happens a meteorite falls from the sky containing Ghidorah, the monster responsible for her planet's destruction. At the same time, Godzilla and Rodan emerge from hibernation and not only attack Japan, but each other as well. Mothra, along with its twin priestesses, attempt to convince Godzilla and Rodan to stop their fighting each other and to team up to fight the new monster. At the same time, the princess is being hunted by a group of assassins who want to kill her so that her enemies can take over her homeland.