Once hailed as a celestial gem, the once-beautiful Planet Terra now teeters on the brink of destruction amid pollution and warfare threats. Only the enigmatic Dr. Chaco holds the key to its salvation: activating the rainbow system using seven elusive crystals. In a bid to secure these crystals and forge a universal empire, Dr. Chaco orchestrates a high-stakes race. Unwittingly drawn into this scheme is the daring racer, Hamos Rick, who uncovers the truth behind the crystals and resolves to restore Terra to its former glory. As tensions escalate, a fierce battle ensues between Dr. Chaco and Rick for control over the seven crystals and the fate of the rainbow system.