The survivors of the destruction of Japan climb back to the surface, thirteen years after their nation was destroyed ... only to find a devastated world locked in battle! Wave after wave of Invaders take their toll on the depleted forces of Hayato's Super Robot Army as the dawn of Armageddon approaches ever nearer. Once again, humanity must rely on the tenacity and spirit of three young pilots and their mastery of the greatest of the robots, the Shin Getter Robo! But as the Invaders turn their victims agai...