Koutetsushin Jeeg

1975, Kyushu. The war against the Great Jama Kingdom is turning against the Japanese Security Forces. During a violent clash between Queen Himika and her generals against the first Jeeg, piloted by Hiroshi Shiba, the bronze bell embedded within Jeeg activates and he is transported to the crater of an extinct volcano. There, he grasps a giant sword, creating an energy vortex that surrounds the entire island. Dark clouds swirl and Kyushu is engulfed in an impenetrable space, later dubbed the "zone". All communication with Kyushu ceases. As years go by with no change in the zone recorded, people and even the world's governments lose their interest in the zone, and the world moves on. The Japanese Government however decides to build a new Build Base to watch over the zone in preparation of a possible attack...