Ancient Aliens: Season 4, Episode 3

The Greys

Who are the beings with big heads and giant eyes that seem to have been visiting our planet for millennia?

Release Date: 2016-02-09
Seasons: 1 2 3 4 5 6 7 8
IMDb: 7.4/10
  • Country: USA
  • Language: English
  • Runtime: 130

Other episodes for this season

The Mayan Conspiracy
Episode 1 - The Mayan Conspiracy
The Doomsday Prophecies
Episode 2 - The Doomsday Prophecies
The Greys
Episode 3 - The Greys
Aliens and Mega-Disasters
Episode 4 - Aliens and Mega-Disasters
The NASA Connection
Episode 5 - The NASA Connection
Mystery of Puma Punku
Episode 6 - Mystery of Puma Punku
Aliens and Bigfoot
Episode 7 - Aliens and Bigfoot
The Da Vinci Conspiracy
Episode 8 - The Da Vinci Conspiracy
The Time Travelers
Episode 9 - The Time Travelers
Aliens and Dinosaurs
Episode 10 - Aliens and Dinosaurs
Secrets of the Pyramids
Episode 11 - Secrets of the Pyramids
Aliens and Cover-Ups
Episode 12 - Aliens and Cover-Ups
Alien Power Plants
Episode 13 - Alien Power Plants
Destination Orion
Episode 14 - Destination Orion
The Einstein Factor
Episode 15 - The Einstein Factor