Following the events of Godzilla: KOTM, humanity's weapon, the Oxygen Destroyer was created to kill the titans. Years later, this one-use attack on Godzilla and King Ghidorah spawned what is essentially the most feared titan of all, Destoroyah! He challenges Godzilla's powers and the consequences of humanity's greatest mistakes, plunging the world into eternal damnation. Only Kong and few other allies can aid the King of the Monsters in his darkest moments of weakness and finally restore balance on two earths.