Unknown Terror: none

The last remaining humans are fighting an uphill battle on a destroyed planet Earth, due to an alien invasion.Mankind faces an enemy they had never known existed. In order to survive, they had to use their most destructive weapon. The nuclear bomb. Other countries did the same. That was a big mistake and now there's no turning back. The race is on. Will mankind continue to be the dominant species on this planet or will there be a new one?