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20 Episodes
S20 E1 - The Top Ten Alien Influencers
S20 E2 - The Top Ten Extraordinary Creatures
S20 E3 - The Top Ten Hidden Alien Bases
S20 E4 - The Top Ten Scariest Encounters
S20 E5 - The Top Ten Alien Codes
S20 E6 - The Top Ten Alien Disasters
S20 E7 - Secrets Of The Sumerians
S20 E8 - The UFO Superhighway
S20 E9 - Mysteries of Scotland
S20 E10 - Mystery of the Stone Spheres
S20 E11 - Mysteries of the Maya
S20 E12 - Unlocking the Stargates
S20 E13 - The Whistleblowers
S20 E14 - The Search For Extraterrestrial Intelligence
S20 E15 - Jacques Vallée: UFO Pioneer
S20 E16 - The Teachers
S20 E17 - Egypt's Giant Tombs
S20 E18 - The Linda Moulton Howe Files
S20 E19 - The Chosen
S20 E20 - Resurrecting Puma Punku
Streaming, rent, or buy Ancient Aliens – Season 20:
Currently you are able to watch "Ancient Aliens - Season 20" streaming on History or buy it as download on Apple TV, Amazon Video, Microsoft Store.
