Cities of the Underworld Season 4 Episodes
Season 4 Episode Guide
Episode 1 - S4 EP1 Mayan ApocalypseDon Wildman explores deep below ancient ruins as he searches for clues pointing to the true fate of the once mighty Mayan empire.
|
Episode 2 - S4 EP2 America's Military UndergroundDon explores top-secret military and government tunnels and researches classified technology that can be used to build entire cities beneath the ground.
|
Episode 3 - S4 EP3 Murder TunnelsDon uses brand-new mapping technology to expose the dark and deadly uncharted spaces beneath American cities.
|
Episode 4 - S4 EP4 America's Ancient AncestorsDon goes deep beneath the great lakes and explores flooded caves as he searches for evidence of a cave-dwelling society that may have been the first people to reach America.
|
Episode 5 - S4 EP5 The Pirate Queen's LairDon explores newly discovered ruins and caves in Croatia as he uncovers the true story of a formidable queen who dared to defy the powerful Roman Empire.
|
Episode 6 - S4 EP6 Templars And The Founding FathersDon 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.
|
Episode 7 - S4 EP7 Secrets Of The Ancient MetropolisDon explores the massive underground cities in the mountains of Turkey that may have been home to the first civilisation on Earth.
|
Episode 8 - S4 EP8 The Lost Aztec ColonyDon follows the clues hidden underground as he searches for evidence of 10,000 Aztecs who fled Mexico and disappeared somewhere in America.
|
More movies and TV shows at the Australian TV Listings Guide..
In order to keep our service free we display advertising and may earn affiliate fees for purchases you make on external sites that we partner with.
All content is © 2025 On TV Tonight unless pertaining to advertisers, companies, studios, movies and TV series listed on this site.