Alice is a young woman opposed to the construction of a power-plant, an idea of her own father who is a member of the parliament. But a weird Visitor from the Future takes her to 2555, a future destroyed by the explosion of that same power-plant. According to the Visiteur, the premature death of her father would prevent this future from happening. But they’ll have to be quick because the Future Police is hunting them down so they don’t alternate their timeline! Alice must achieve the impossible: save her world and save her father.
After a collision with a comet, a nearly 8km wide piece of the asteroid "Orpheus" is heading towards Earth. If it will hit it will cause a incredible catastrophe which will probably extinguish mankind. To stop the meteor NASA wants to use the illegal nuclear weapon satellite "Hercules" but discovers soon that it doesn't have enough fire power. Their only chance to save the world is to join forces with the USSR who have also launched such an illegal satellite. But will both governments agree?