核戦争後の世界で傷ついたロボット同士が繰り広げる巨大バトル

Planet Earth, year 2199, after the Third World War, during a nuclear apocalypse when the sun is hidden behind a thick radioactive cloud, there are two colossal robots that collide with all their futuristic weapons, they are seriously damaged but continue to fight, one is Gundam and the other is Mazinger Z.