Investigators circle the globe in search of evidence in their quest to determine whether life on Earth began in outer space and if aliens influenced mankind in ancient times. Did extraterrestrial beings visit Earth and share information about technology and influence human religions? And more importantly, if aliens visited the planet before, will they return? Alien theorists believe that the answer to both questions is a resounding yes.
In 2021, the US government broke a 70-year precedent of denying UFOs and released a groundbreaking report on Unidentified Aerial Phenomena. This is the full story.
According to Ancient Astronaut Theorists, the placement of monoliths and their geological makeup could point to extraterrestrial intervention. (S14, ep 2)
Some of the world's most iconic sacred temples were built atop the ruins of structures that are far more ancient. Do these locations hold powers? (S14, ep 3)
After decades of secrecy, high-ranking government officials are now discussing UFOs. But why now? Some say the evidence has become too great to ignore. (S14, ep 4)
Some 2600 years ago, the most sacred relic of the ancient world suddenly disappeared from history. Where did it go and why? (S14, ep 5)
Explore the stories of the Star Ancestors - powerful beings embedded in the traditions of native people across North America that still exist. (S14, ep 6)
Since 2017, the Navy has been releasing photos and videos of UFOs. Theorists suggest the images are nearly identical to accounts from centuries ago. (S14, ep 7)
Millions have reported encountering shadowy entities around the world who instil fear and even paralysis. Are they imaginary, or otherwordly visitors? (S14, ep 8)
A look at the fire-breathing dragons, appearing in tales throughout the ancient world and worshipped as the bringers of great knowledge. (S14, ep 9)
As more people open their minds to UFOs and extraterrestrial visits from lightyears away, this episode explores whether aliens can bend both time and space. (S14, ep 10)
On Location - Incredible Structures: Investigate 75 million years of credible evidence suggesting aliens have visited Earth. From cave drawings to phenomena in the skies. (S14, ep 11)
Giorgio Tsoukalos takes a look back at the most extraordinary encounters that, as far as he's concerned, provide evidence of an extraterrestrial presence on Earth.
Giorgio Tsoukalos takes a look back at the incredible hieroglyphs, petroglyphs, and geoglyphs that he believes tell a worldwide story of alien visitation.
Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.
Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.
Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.
Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.
Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.
Giorgio Tsoukalos takes a look back at the most compelling investigations of all, including events that he believes represent real encounters with extraterrestrial visitors.
A British woman in the 20th century stunned Egyptologists by accurately locating structures and artefacts. Perhaps she had an otherworldly agenda? (S14, ep 20)