Time-travelers’ efforts to prevent a dinosaur’s mutation result in the creation of a three-headed dragon that terrorizes Japan.

Time traveling from the 23rd century, a group calling themselves the Futurians arrive in Japan in the year 1992 to warn of a great danger posed by Godzilla. To avert the crisis, the Futurians, seeking council from an author, Kenichiro Terasawa, who believes he knows how Godzilla was created (from a dinosaur on Lagos Island). Using his research as a guide, they travel further back in time to Lagos Island in 1944 to prevent the King of the Monsters from ever existing. Unknown to humanity, the Futurians have another motive: creating a kaiju they can control. To achieve this, the monster King Ghidorah is created by exposing a genetic creation called the Dorats to the same radiation that would have made Godzilla. The three-headed monster then rages across Japan, but is the original nuclear menace really gone?

This video is dubbed in English.