Season
- Season 20 2024-01-05
- Season 19 2023-01-06
- Season 18 2022-01-07
- Season 17 2021-08-06
- Season 16 2020-11-13
- Season 15 2020-01-25
- Season 14 2019-05-31
- Season 13 2018-04-27
- Season 12 2017-04-28
- Season 11 2016-05-06
- Season 10 2015-07-24
- Season 9 2014-10-31
- Season 8 2014-06-13
- Season 7 2014-01-24
- Season 6 2013-09-30
- Season 5 2012-12-21
- Season 4 2012-02-17
- Season 3 2011-07-28
- Season 2 2010-10-28
- Season 1 2010-04-20
- Season 0 2009-03-08
Episode
- Episode 1: The Disclosure Event
- Episode 2: Mystery of the Standing Stones
- Episode 3: Beneath the Sacred Temples
- Episode 4: The World on Alert
- Episode 5: Recovering The Ark Of The Covenant
- Episode 6: Secrets Of The Star Ancestors
- Episode 7: Alien Air Force
- Episode 8: The Shadow People
- Episode 9: Decoding the Dragon Gods
- Episode 10: The Time Benders
- Episode 11: Ancient Aliens On Location: Incredible Structures
- Episode 12: Ancient Aliens On Location: Extraordinary Encounters
- Episode 13: Ancient Aliens on Location: The Alien Glyphs
- Episode 14: Ancient Aliens On Location: The UFO Investigations
- Episode 15: Ancient Aliens On Location: Mysterious Artifacts
- Episode 16: Ancient Aliens on Location: Evidence of Alien Life
- Episode 17: The Shining Ones
- Episode 18: The Journey to Immortality
- Episode 19: Secrets of Inner Earth
- Episode 20: Return of the Egyptian Gods
Ancient Aliens Season 18 The World on Alert
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.
