Season 1
8 episodes · Nov 11, 2022
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S1E1Once There Was a Flood
Nov 11, 202231mGraham visits Gunung Padang, an Indonesian archeological site, to find proof of a lost civilization — and the potential cataclysm that wiped it out.
S1E2Stranger in a Time of Chaos
Nov 11, 202233mIn Cholula, Mexico's oldest continuously-inhabited city, the journalist inspects the world's largest pyramid for signs of a forgotten past.
S1E3Sirius Rising
Nov 11, 202231mGraham discovers a fascinating pattern that may connect the spectacular megalithic temples of Malta, which he believes to be much older than reported.
S1E4Ghosts of a Drowned World
Nov 11, 202230mFew scholars have investigated the Bimini rock formation off the coast of Miami, once fabled to be the road to Atlantis — but Graham dives right in.
S1E5Legacy of the Sages
Nov 11, 202232mAt Göbekli Tepe, the oldest known megalith in the world, Graham questions if simple hunter-gatherers alone could have built such an advanced structure.
S1E6America's Lost Civilization
Nov 11, 202233mGraham visits ancient mounds in North America and wonders if they contain astronomical significance — or even warnings of an apocalyptic climate event.
S1E7A Fatal Winter
Nov 11, 202229mThe author returns to Turkey to explore Derinkuyu, an ancient underground city and survival bunker that could shelter thousands in times of crisis.
S1E8Cataclysm and Rebirth
Nov 11, 202232mIn the ancient geological sites of North America, Graham envisions an apocalyptic event that may have changed the Earth — and its inhabitants — forever.