Reporter Graham Hancock travels around the world, pursuing traces of mysterious lost civilizations that can be traced back to the last Ice Age.He was not afraid of hardships and traveled through deserts, dense forests and ancient ruins just to reveal the historical truth buried by time, and to find evidence of the once glorious existence of ancient civilizations in the remaining stone tablets and legends.This journey is not only a search for the past, but also a profound reflection on the origin of human civilization.