| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S17E01 | The Lost City of Peru |
August 6, 2021
History
|
42 | |
| S17E02 | Top 10 Mysterious Sites |
August 13, 2021
History
|
42 | |
| S17E03 | Top Ten Alien Cover-Ups |
August 20, 2021
History
|
42 | |
| S17E04 | The Mystery of Mount Shasta |
September 17, 2021
History
|
42 | |
| S17E05 | The Human Experiment |
September 24, 2021
History
|
42 | |
| S17E06 | Top Ten Alien Encounters |
October 1, 2021
History
|
42 | |
| S17E07 |
Top Ten Alien Artifacts
season finale
|
October 8, 2021
History
|
42 |
No artwork of this type.
No artwork of this type.
