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Season 15 Episodes

1. The Mystery of Nan Madol

January 25th, 202042 min

Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol; built from 250 million tons of volcanic rock, there are local legends that strange visitors floated the massive rocks through the air.

2. The Relics of Roswell

February 1st, 202042 min

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 overlooked.

3. Destination Chile

February 8th, 202042 min

The Chilean government questions whether new footage from a Navy helicopter indicates a connection to geoglyphs in the Atacama Desert.

4. The Real Men in Black

February 15th, 202042 min

An investigation into the rumors that the U.S. government is working covertly with space aliens to create alien-human hybrids.

5. The Mystery of the Stone Giants

February 22nd, 202042 min

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 technological purpose that modern man is just now unlocking'

6. The World Before Time

February 29th, 202042 min

Shocking new evidence reveals that advanced civilizations might have existed on Earth tens of thousands of years ago. Is it possible that a technologically advanced society thrived on Earth then’ And did they leave behind a record that they lived alongside extraterrestrial beings’

7. They Came from The Pleiades

March 7th, 202042 min

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

8. The Immortality Machine

March 14th, 202042 min

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 known as the Integratron, could it actually provide the key to immortality.

9. The Shapeshifters

March 21st, 202042 min

Accounts of creatures that can shape shift from one form into another can be found, but could similarities between the ancient stories and modern-day alien abduction accounts reveal that shape shifters are real and have come to Earth.

10. The Mystery of Skinwalker Ranch

March 28th, 202042 min

Nestled within a remote valley in Utah, is a ranch that some believe is a hotbed of strange, inexplicable phenomena including terrifying creatures, paranormal apparitions and lights in the sky. Could the bizarre activity have a connection to an alien entity known as the Skinwalker'

11. The Ultimate Guide to UFOs

April 11th, 202042 min

UFO witnesses have reported a wide variety of objects in Earth's skies--and not only in modern times, but for centuries. What might we learn from examining their shapes, sizes, and the way they maneuver' Could they offer important clues about other intelligent life in our galaxy'

12. Aliens and the Presidents

April 18th, 202042 min

The White House has consistently denied having any knowledge of alien craft visiting Earth, but presidential encounters with UFOs and other strange phenomena can be found going all the way back to George Washington. Is it possible that extraterrestrials have been monitoring–and even influencing–America’s presidents’

All Seasons

Season 20

Season 20

Jan 5, 2024
Season 19

Season 19

Jan 6, 2023
Season 18

Season 18

Jan 7, 2022
Season 17

Season 17

Aug 6, 2021
Season 16

Season 16

Nov 13, 2020
Season 15

Season 15

Jan 25, 2020
Season 14

Season 14

May 31, 2019
Season 13

Season 13

Apr 27, 2018
Season 12

Season 12

Apr 28, 2017
Season 11

Season 11

May 6, 2016
Season 10

Season 10

Jul 24, 2015
Season 9

Season 9

Oct 31, 2014
Season 8

Season 8

Jun 13, 2014
Season 7

Season 7

Jan 24, 2014
Season 6

Season 6

Sep 30, 2013
Season 5

Season 5

Dec 21, 2012
Season 4

Season 4

Feb 17, 2012
Season 3

Season 3

Jul 28, 2011
Season 2

Season 2

Oct 28, 2010
Season 1

Season 1

Apr 20, 2010
Specials

Specials

Mar 8, 2009