When the tranquil world faces a sudden threat from the depths of the sea where Mogool lurks, the ruthless Helqeen, ruler of the Mogoolian Empire, sets out with her loyal companions Goroskie and Zan-gack to conquer the earth. In a bid to thwart their sinister plan, the foresighted Dr. Yuri assembles a quartet of mighty robots to establish the formidable Blocker Corps! Alongside, he unites four individuals wielding the extraordinary 'elepath' ability, adept at piloting colossal mechs. As a life-or-death skirmish ensues between our valiant Blocker Corps and the forces of Mogool, a spectacular saga of battles brimming with wonder and awe unfurls.