Heisei era (1984–1995)

In Godzilla vs. King Ghidorah, time travelers from the future go back in time to 1944 to relocate the Godzillasaurus and to replace it with their own creation — three tiny Dorats, which were harmless pets of the Futurians — to allow it to undergo Godzilla’s nuclear transformation instead, mutating and combining them into a three-headed golden abomination, King Ghidorah. Unfortunately, they were unaware that the Godzilla they were planning to erase was not as they asumed the one which originally attacked Tokyo in 1954.

The Futurians tricked several scientists into aiding them on a false time-traveling mission with pretenses to prevent Godzilla’s transformation on Lagos Island. In efforts to stop the Futurians’ monster that was instead created, an extremely wealthy corporate developer who previously fought on the island as a Japanese soldier made plans to send a nuclear submarine into the Bering Sea in an attempt to create the second Godzilla. Instead of finding the Godzillasaurus, the submarine would come face to face with Godzilla himself.

The Futurians’ ignorance of the past leads them to create the second Godzilla in the first place rather than removing him from history. Godzilla would absorb the power of the nuclear sub, purging his system of the ANB and increasing his size further, becoming powerful enough to defeat King Ghidorah, the Futurians’ monster.

Godzilla went on to attack Japan itself, but was stopped when Emmy, one of the Futurians who had turned on her fellows, resurrected Ghidorah as a cyborg in the future, returning to the past to battle Godzilla with the new Mecha-King Ghidorah. The two battled in Tokyo, with both fall into the sea, but Godzilla is still alive and reawakes using his atomic ray underwater as the movie’s conclusion.