Ultraman

Impressed by the sacrifices of Seiji Hokuto, & Yuko Minami by protecting the people during an attack of Verokron who was created by Dimmension Man Yapool, The 5 Ultra Brothers gave the two humans lives, & send their new member Ultraman Ace to be their human host to fight off a age of new Monsters know as Chouju

An enormous silver colored egg is found at a construction site. With curiosity getting the best of him, a worker is absorbed into the huge egg shortly before it submerges below ground. TAC investigates, but finds no traces of the construction worker, or the egg. Later, a golden egg-shaped flying object is detected. Hokuto intercepts it, seemingly destroying the UFO. Later on during a party for Hokuto and Minami, the golden egg reappears in the city nestling atop a building. Shortly thereafter, the silver egg reemerges and combines to form a super egg with the golden one. TAC discovers that a similar occurrence is described in an ancient Egyptian text about a giant creature named Chameleking hatched from a golden and silver egg that attacked Atlantis. It is surmised that Yapool is attempting to recreate this ancient scenario on Earth.

On patrol, Minami witnesses the sky crack open and a monster emerges. Destroying a bridge with a little boy on it, a passenger plane flies overhead and it, too, is destroyed. TAC investigates the wreckage and finds no sign of the little boy, nor the monster Minami described. Hokuto finds the yellow hat belonging to the boy which happens to have his name, Shiro Nakamori, printed on it. Hokuto locates his parents and upon meeting the boy, realizes something is wrong with him after he swipes his gun and attempts to kill him with it! It's discovered the boy has been possessed by the Yapool, using him as a host for the monster Vakishim. Luring the main TAC members away with a decoy, Vakishim is sent to destroy the TAC headquarters at the base of Mount Fuji.