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| Aflevering | Eerste uitzending |
|---|---|
| S20E01 - The Top Ten Alien Influencers | 05/01/2024 |
| S20E02 - The Top Ten Extraordinary Creatures | 12/01/2024 |
| S20E03 - The Top Ten Hidden Alien Bases | 19/01/2024 |
| S20E04 - The Top Ten Scariest Encounters | 02/02/2024 |
| S20E05 - The Top Ten Alien Codes | 09/02/2024 |
| S20E06 - The Top Ten Alien Disasters | 16/02/2024 |
| S20E07 - Secrets of the Sumerians | 23/02/2024 |
| S20E08 - The UFO Superhighway | 01/03/2024 |
| S20E09 - Mysteries of Scotland | 08/03/2024 |
| S20E10 - Mystery of the Stone Spheres | 15/03/2024 |
| S20E11 - Mysteries of the Maya | 28/06/2024 |
| S20E12 - Unlocking the Stargates | 05/07/2024 |
| S20E13 - The Whistleblowers | 12/07/2024 |
| S20E14 - The Search For Extraterrestrial Intelligence | 19/07/2024 |
| S20E15 - Jacques Vallée: UFO Pioneer | 09/08/2024 |
| S20E16 - The Teachers | 16/08/2024 |
| S20E17 - Egypt's Giant Tombs | 23/08/2024 |
| S20E18 - The Linda Moulton Howe Files | 30/08/2024 |
| S20E19 - The Chosen | 06/09/2024 |
| S20E20 - Resurrecting Puma Punku | 13/09/2024 |