The Futurians, Terasawa, Miki Saegusa, and Professor Mazaki, board a time shuttle and travel back to 1944 to Lagos Island. There, as American forces land and engage the Japanese forces commanded by Shindo, the dinosaur attacks and kills the American soldiers. The American navy then bombs the dinosaur from the sea and gravely wounds it. After Shindo and his men leave the island, M-11 teleports the dinosaur from Lagos Island to the Bering Strait. Before returning to 1992, the Futurians secretly leave three small creatures called Dorats on Lagos Island, which are exposed to radiation from the hydrogen bomb test in 1954 and merge to become King Ghidorah, which then appears in present-day Japan. After returning to 1992, the Futurians use King Ghidorah to subjugate Japan and issue an ultimatum, but Japan refuses to surrender.