JustWatch
S04 Episode 1
Mayan Apocalypse
Don Wildman explores deep below ancient ruins as he searches for clues pointing to the true fate of the once-mighty Mayan empire.
43 mins · Tue, 7 Sep 2021
S04 Episode 2
America's Military Underground
Don explores top-secret military and government tunnels and looks into classified technology that could be used to build entire cities... right under our feet.
43 mins · Tue, 14 Sep 2021
S04 Episode 3
America's Unmapped Murder Tunnels
Don uses brand-new mapping technology to expose the dark and deadly uncharted spaces beneath American cities. He explores the criminal underworld below Portland, Oregon; Seattle, Washington; Chicago, Illinois; and Los Angeles, California.
43 mins · Tue, 21 Sep 2021
S04 Episode 4
America's Ancient Ancestors
Don goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a mysterious, cave-dwelling society that may have been the first people to reach America.
43 mins · Tue, 28 Sep 2021
S04 Episode 5
The Pirate Queen's Lair
Don explores newly discovered ruins and caves in Croatia as he uncovers the true story of a formidable queen who dared to defy the mighty Roman Empire.
43 mins · Tue, 5 Oct 2021
S04 Episode 6
Templars and The Founding Fathers
Don goes deep beneath a Knights Templar stronghold in Turkey to explore a provocative theory that may link the fabled secret society to the founding fathers of America.
English
43 mins · Tue, 12 Oct 2021
S04 Episode 7
Secrets of the Ancient Metropolis
Don explores the massive underground cities in the mountains of Turkey that may have been home to the first civilization on Earth.
43 mins · Tue, 19 Oct 2021
S04 Episode 8
The Lost Aztec Colony
Don follows the clues hidden underground as he searches for evidence of 10,000 Aztecs who fled Mexico and disappeared somewhere in America.
43 mins · Tue, 26 Oct 2021
