An unprecedented disaster quickly engulfed the whole world like a prairie fire. When all parts of the world fell one after another, and the living space of human beings was sharply compressed, what kind of life would people choose? Behind the disaster, half a century of grievances and resentments were involved. Enmity. How powerful can human emotions explode? Can Qi Mo's team and his pet dog uncover the secrets hidden in the dust? Who should control the fate of human beings? What is the truth?