In ancient times, the mecha empire of Shamasina, which ruled the Earth with superior technology, was sealed deep in the earth by the brave Kaiju warrior Galkibas, but the seal was weakened by the effects of climate change and began to overrun the earth again. The souls of the heroes of the Kaiju warriors entrust their power to five young men. They become Kaiju Sentai Juukaiser and bravely confront Shamasina with buddy monsters! One of the Juukaizers, Sora Randou, is taken captive after a fierce battle. Randou Tian, who was deprived of the Kaiju Changer, was unable to transform ... ［BAD END］