| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S13E01 | The Relics of Roswell |
February 1, 2020
History
|
42 | |
| S13E02 | Destination Chile |
February 8, 2020
History
|
42 | |
| S13E03 | The Real Men in Black |
February 15, 2020
History
|
42 | |
| S13E04 | The Mystery of the Stone Giants |
February 22, 2020
History
|
42 | |
| S13E05 | The World Before Time |
February 29, 2020
History
|
42 | |
| S13E06 | They Came from The Pleiades |
March 7, 2020
History
|
43 | |
| S13E07 | The Immortality Machine |
March 14, 2020
History
|
42 | |
| S13E08 | The Shapeshifters |
March 21, 2020
History
|
42 | |
| S13E09 | The Ultimate Guide to UFOs |
April 11, 2020
History
|
42 | |
| S13E10 |
Aliens and the Presidents
season finale
|
April 18, 2020
History
|
42 | |
| S13E11 | The Divine Number |
November 13, 2020
History
|
42 | |
| S13E12 | The Lost Kingdom |
November 20, 2020
History
|
42 | |
| S13E13 | The Galactic Keyhole |
December 4, 2020
History
|
42 | |
| S13E14 | Giants of the Mediterranean |
December 11, 2020
History
|
42 | |
| S13E15 | The Forbidden Bible |
December 18, 2020
History
|
42 | |
| S13E16 | Impossible Artifacts |
February 19, 2021
History
|
42 | |
| S13E17 | The Mystery of Nan Madol |
January 25, 2020
History
|
42 | |
| S13E18 | The Mystery of Skinwalker Ranch |
March 28, 2020
History
|
42 |
No artwork of this type.
No artwork of this type.
No artwork of this type.