Every day, thousands perish. Those who survive share rumors of an alien entity called "Diadora". The survivors took refuge below the earth`s surface, narrowly escaping the alien invaders. The governing council ordered an immediate counterattack. The primary objective codenamed "Counter Force" would reclaim the earth`s surface using 3 experimental robots. The secondary objective is to investigate the alien war-machine`s weaknesses and defeat the mysterious "Diadora"