Natasha, raised in an orphanage in Hiroshima, has always been searching for the truth about her past. But when she becomes one of two female commanders on a space lab tracking two massive asteroids, she finds herself in the middle of a mystery that threatens to end life as we know it. With the Earth on the brink of destruction, everyday objects are appearing in the strangest places - over 250,000 years old, and seemingly out of time. From digital watches in museums to modern spectacles in ancient Egyptian digs, something is not right. And as the asteroids change direction, heading straight for the planet, a third, massive, metallic sphere appears. Will Natasha and the team be able to stop the impending extinction event, or will the Earth be lost forever?