Ancient Aliens

Episode 1 | The Mystery of Nan Madol

Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol. Built from a staggering 250 million tons of volcanic rock, could the local legends be true-that strange visitors float...

Episode 2 | The Relics of Roswell

In 1947, the U.S. military collects debris from what they claim is a crashed weather balloon outside of Roswell, N.M.; new evidence may prove that the wreckage belonged to an alien spacecraft and that remnants may have been overlo...

Episode 3 | Destination Chile

Chile boasts the highest number of annual UFO sightings of any nation on Earth. Now, incredible new footage of a strange craft--captured by a Navy helicopter--has even the Chilean government asking if alien visitors are drawn to t...

Episode 4 | The Real Men in Black

The allegations that the U.S. government is plotting with space aliens.

Episode 5 | The Mystery of the Stone Giants

From Egypt to Easter Island, towering figures built by ancient man stand watch over the Earth. Are these stone giants simply a testament to humanity's past or could they depict visitors from another world' And do they serve a tech...

Episode 6 | The World Before Time

Is it possible that a technologically advanced society thrived on Earth tens of thousands of years ago? Did they leave behind a record that they lived alongside extraterrestrial beings?

Episode 7 | They Came from The Pleiades

In numerous ancient cultures throughout the world, stories were told of ancestors that came to Earth from the Pleiades star cluster. Could new scientific findings reveal that humankind's true origins lie not on Earth... but 400 li...

Episode 8 | The Immortality Machine

In the Mojave Desert, there is a structure built to bestow everlasting life--and according to the architect, the blueprint was provided by an extraterrestrial visitor.

Episode 9 | The Shapeshifters

Accounts of creatures that can shapeshift from one form into another can be found throughout history. Could striking similarities between the ancient stories and modern-day alien abduction accounts reveal that shapeshifters are re...

Episode 10 | The Mystery of Skinwalker Ranch

Nestled within a remote valley in Utah, is a ranch that some believe is a hotbed of strange, inexplicable phenomena. Could the bizarre activity have a connection to an alien entity known as the Skinwalker'?

Episode 11 | The Ultimate Guide to UFOs

UFO witnesses have reported a wide variety of objects in Earth's skies and not only in modern times, What might we learn from examining their shapes, sizes, and the way they maneuver.

Episode 12 | Aliens and the Presidents

The White House has consistently denied having any knowledge of alien craft visiting Earth, but presidential encounters with UFOs and other strange phenomena go all the way back to George Washington.

Episode 13 | The Divine Number

Episode 14 | The Lost Kingdom

Episode 15 | The Forbidden Bible