Geologist Nick Eyles embarks on a journey across the Great Rift Valley, exploring the profound impact of tectonic forces on human evolution and the rise and fall of ancient civilizations. From the cradle of humanity in Kenya and Ethiopia to the historic ruins of Egypt and the ancient city of Petra, Eyles investigates how the shifting earth has shaped our history, culture, and even our modern religions. Through his exploration, he reveals the underlying truth of this place, where the birth and death of oceans have left an indelible mark on the landscape and the story of our species.