KIDS is a multi-purpose, highly advanced technological wonder from the 23rd century. The remarkable vehicle was contained inside the enormous time machine MOTHER as it returned to the year 1992. Piloting MOTHER were the Futurians and their androids. Hailing from the 23rd century, the race planned to trick 20th century Japan. Their plan was to remove Godzilla from history and secretly replace him with King Ghidorah. Emmy Kano and the android M11 readied KIDS as it prepared to launch into the past to accomplish this. The smaller craft shot into the sky, embracing an aurora of colors that surrounded the time shifting vessel.

Arriving in 1944, KIDS landed on Lagos Island. The crew witnessed a fierce battle between a lone Godzillasaurus and a battalion of American soldiers. The dinosaur was badly wounded from the fray, although was saluted by the surviving Japanese soldiers. As the Japanese garrison left the dinosaur, M11 began to use the teleportation technology aboard KIDS. The android dematerialized the animal and relocated him to the remote Bering Sea. The cryptic creature held on to life for decades and was ultimately mutated into the modern Godzilla. Emmy, meanwhile, released three genetically engineered pets on Lagos called the Dorats. These would ultimately transform into the three-headed dragon: King Ghidorah. The giant titan was an invaluable pawn in the sinister plans of the duplicitous Futurians.

KIDS sped into the future, and as it arrived in the present day, tragedy struck. It was revealed that the Futurians were in truth working against Japan. They had complete control over King Ghidorah, whom they ordered to destroy the country. Emmy Kano dissented from her fellow crew members and led an attack on the transmitting devices in the time machine. Aboard KIDS, Emmy and a reprogrammed M11 teleported MOTHER into the middle of the battle between Godzilla and King Ghidorah. The giant craft was promptly annihilated by a powerful thermonuclear beam of energy. King Ghidorah was defeated shortly thereafter, and it fell into the depths of the sea.

Emmy, realizing the grave situation her homeland faced with an unopposed Godzilla, rushed to the future aboard KIDS. Once there she convinced the scientists of her time to rebuild King Ghidorah as Mecha-King Ghidorah. KIDS docked aboard the newly created cyborg. This allowed the monster not only the ability to time travel, but also gave Emmy and M11's digital brain a route of escape in case the situation became grim.

The cybernetic hydra returned to the past, where it clashed with Godzilla and dragged the beast out to sea. Mecha-King Ghidorah was badly damaged in the process, and Emmy and M11's brain were forced to use KIDS to escape. With Godzilla tightly grasped by Mecha-King Ghidorah's machine-hand restraint at the bottom of the sea, the evil plot of the Futurians was finally laid to rest. Emmy and M11, confident in their victory, returned to their own time in the distant future...