After having a collision with a comet, a not quite 8km wide piece of this asteroid"Orpheus" is heading towards Earth. If it will hit a extraordinary catastrophe which will probably extinguish humanity will be caused by on it. To halt the meteor NASA wants to utilize the prohibited atomic weapon satellite"Hercules" but finds soon that it doesn't have enough firepower. Their only chance is to combine forces with the USSR who have launched this kind of illegal satellite. However, will governments agree?