| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S12E01 | Return to Antarctica |
May 31, 2019
History
|
42 | |
| S12E02 | The Badlands Guardian |
June 7, 2019
History
|
42 | |
| S12E03 | Element 115 |
June 14, 2019
History
|
42 | |
| S12E04 | The Star Gods of Sirius |
June 21, 2019
History
|
42 | |
| S12E05 | They Came from the Sea |
June 28, 2019
History
|
42 | |
| S12E06 | Secrets of the Maya |
July 5, 2019
History
|
42 | |
| S12E07 | The Druid Connection |
July 19, 2019
History
|
42 | |
| S12E08 | The Reptilian Agenda |
July 26, 2019
History
|
42 | |
| S12E09 | The Alien Infection |
August 2, 2019
History
|
42 | |
| S12E10 | Project Hybrid |
August 9, 2019
History
|
42 | |
| S12E11 | The Trans-Dimensionals |
August 16, 2019
History
|
42 | |
| S12E12 | Islands of Fire |
August 23, 2019
History
|
42 | |
| S12E13 | The Constellation Code |
August 30, 2019
History
|
42 | |
| S12E14 | The Nuclear Agenda |
September 6, 2019
History
|
42 | |
| S12E15 | The Alien Mountain |
October 4, 2019
History
|
42 | |
| S12E16 | The Alien Brain |
October 11, 2019
History
|
42 | |
| S12E17 | The Secrets of Stonehenge |
October 18, 2019
History
|
42 | |
| S12E18 | Food of the Gods |
November 1, 2019
History
|
42 | |
| S12E19 | Human Hieroglyphs |
November 8, 2019
History
|
42 | |
| S12E20 | The Storming of Area 51 |
November 15, 2019
History
|
42 | |
| S12E21 | Countdown to Disclosure |
November 22, 2019
History
|
42 | |
| S12E22 |
Secrets of the Exoplanets
season finale
|
November 29, 2019
History
|
42 |
No artwork of this type.
No artwork of this type.
No artwork of this type.