Ancient Aliens

Season 20

Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate.

Where to Watch Season 20

10 Episodes

The Top Ten Alien Influencers
E1
The Top Ten Alien InfluencersEpisode 1
The Top Ten Extraordinary Creatures
E2
The Top Ten Extraordinary CreaturesEpisode 2
The Top Ten Hidden Alien Bases
E3
The Top Ten Hidden Alien BasesEpisode 3
The Top Ten Scariest Encounters
E4
The Top Ten Scariest EncountersEpisode 4
The Top Ten Alien Codes
E5
The Top Ten Alien CodesEpisode 5
The Top Ten Alien Disasters
E6
The Top Ten Alien DisastersEpisode 6
Secrets Of The Sumerians
E7
Secrets Of The SumeriansEpisode 7
The UFO Superhighway
E8
The UFO SuperhighwayEpisode 8
Mysteries of Scotland
E9
Mysteries of ScotlandEpisode 9
Mystery of the Stone Spheres
E10
Mystery of the Stone SpheresEpisode 10