Investigators endeavour to understand whether life on Earth has its origins in outer space, and if ancient civilisations - and their technology and religions - were influenced by aliens.
EPISODE 1
The Evidence
Investigators search for clues, regarding potential alien visits to Earth, contained in Indian Sanskrit texts, Jewish Zohar writings, and megalithic Egyptian stone structures.
EPISODE 2
The Visitors
Investigating possible historic evidence and beliefs around the globe in search of signs that aliens visited ancient Earth; Hopi and Zuni Indians celebrate Kachina sky gods; the Chinese legend of Huangdi arriving on Earth on a flying dragon.
EPISODE 3
The Mission
Strange evidence in cultures throughout history indicates aliens came to Earth on missions to explore, obtain raw materials, experiment on humans and conquer; Sumerian tablets describe an alien race; Egyptian hieroglyphs depict hybrid creatures.
EPISODE 4
Closer Encounters
Alien encounters and UFO sightings have been reported throughout human history. As far back as the medieval period, disc-shaped objects were found depicted among the heavens in works of art.
EPISODE 5
The Return
Investigators take a look at the possibilities of alien contact in the 20th century, examining reports of a 1947 UFO crash in Roswell, New Mexico, as well as a 1942 aerial battle in the sky over Los Angeles.
Mysterious Places
From Mexico's mystifying Zone of Silence to Markawasi Plateau in Peru to the Bermuda Triangle, certain sites combine ancient clues of potential alien visitation with mysterious present-day UFO activity.
Giorgio Tsoukalos
Erich von Däniken
David Childress
William Henry
Linda Moulton Howe
David Wilcock
Jonathan Young
Jason Martell
Robert Clotworthy
Kevin Burns
David Silver