| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Vikings in the Desert |
May 28, 2019
Travel Channel
|
60 | |
| S04E02 | Alien Artifacts |
June 4, 2019
Travel Channel
|
60 | |
| S04E03 | Cave of Secrets |
June 11, 2019
Travel Channel
|
60 | |
| S04E04 | The Ripper Unmasked |
June 18, 2019
Travel Channel
|
60 | |
| S04E05 | Phoenicians in America |
June 25, 2019
Travel Channel
|
60 | |
| S04E06 | The Spy Who Saved America |
July 2, 2019
Travel Channel
|
60 | |
| S04E07 | Bigfoot of the Bayou |
July 9, 2019
Travel Channel
|
60 | |
| S04E08 | Drake's Lost Treasure |
July 16, 2019
Travel Channel
|
60 | |
| S04E09 | Chicago's Mystery Bomber |
July 23, 2019
Travel Channel
|
60 | |
| S04E10 |
Exodus of the Templars
series finale
|
July 30, 2019
Travel Channel
|
60 |
No artwork of this type.
No artwork of this type.
No artwork of this type.