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Graham visits ancient mounds in North America and wonders if they contain astronomical significance — or even warnings of an apocalyptic climate event.
Episodes
EP 1
Once There Was a Flood
2022-11-11
EP 2
Stranger in a Time of Chaos
2022-11-11
EP 3
Sirius Rising
2022-11-11
EP 4
Ghosts of a Drowned World
2022-11-11
EP 5
Legacy of the Sages
2022-11-11
EP 6
America's Lost Civilization
2022-11-11
EP 7
A Fatal Winter
2022-11-11
EP 8
Cataclysm and Rebirth
2022-11-11
Voice Cast
Graham HancockSelfVoice Actor
Trailers & Extra Content
Official Trailer
