Journalist and writer Graham Hancock travels the globe hunting for evidence of mysterious, lost civilizations dating back to the last Ice Age. He attempts to prove that a climatic event 12,000 years ago wiped out an entire civilization far more sophisticated than the simple hunter-gatherers some archaeologists believe lived at that time.
Once there was a flood
Stranger in a time of chaos
Sirius rising
Ghosts of a drowned world
Legacy of the sages
America's lost civilization
A fatal winter
Cataclysm and rebirth
Chapter i
Chapter ii
Chapter iii
Chapter iv
Chapter v
Chapter vi
NextFilm 2025