Season 15 Summary[]
Ancient astronaut theorists examine evidence of past human-extraterrestrial contact.
Evidence is found in: ancient megalithic structures on Pacific islands; UFO wreckage debris from Roswell; UFO sightings and geoglyphs in Chile; the historical Men In Black phenomenon; giant stone statues around the world; prehistoric civilizations before Earth's pole shifts; interstellar objects and cultural ancestors from the Pleiades; a rejuvenation device gifted from aliens; the connection between shapeshifters and alien camouflage technology; paranormal phenomena of Skinwalker Ranch; a catalog of UFOs through history; and U.S. presidential encounters with UFOs.
Season 15 Episodes[]
| No. Overall | No. in Season | Title | Original Air Date |
|---|---|---|---|
| 172 | 1 | The Mystery of Nan Madol | January 25, 2020 |
| 173 | 2 | The Relics of Roswell | February 1, 2020 |
| 174 | 3 | Destination Chile | February 8, 2020 |
| 175 | 4 | The Real Men in Black | February 15, 2020 |
| 176 | 5 | The Mystery of the Stone Giants | February 22, 2020 |
| 177 | 6 | The World Before Time | February 29, 2020 |
| 178 | 7 | They Came from The Pleiades | March 7, 2020 |
| 179 | 8 | The Immortality Machine | March 14, 2020 |
| 180 | 9 | The Shapeshifters | March 21, 2020 |
| 181 | 10 | The Mystery of Skinwalker Ranch | March 28, 2020 |
| 182 | 11 | The Ultimate Guide to UFOs | April 11, 2020 |
| 183 | 12 | Aliens and the Presidents | April 18, 2020 |