When a group of archaeologists uncover the tomb of a legendary warrior, they unearth Kuuga’s belt, accidentally releasing an ancient race of monsters called the Grongi, bent on destroying humanity.

Yusuke Godai awakens from a nap at the Pore Pore Tea Cafe and finds a scrapbook with newspaper clippings about his battles as Kuuga. As he reminisces about each fight, gaining each of his forms ...