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| Date | Episode # (↑) | Title | Network | Rating | Share | Viewers | Watch/Purchase DVD/Download |
|---|---|---|---|---|---|---|---|
| 07/06/2022 | Doomsday Lair of Greece | Science | |||||
| 07/13/2022 | Mystery of the Welsh Mine | Science | |||||
| 07/20/2022 | Riddle of Sardinia Tower | Science | |||||
| 07/27/2022 | Circles of the High Kings | Science | |||||
| 08/03/2022 | Russia's Lightning Lab | Science | |||||
| 08/10/2022 | Poland's Secret Nazi Compound | Science | |||||
| 08/17/2022 | Holes of Dead Sea Destruction | Science | |||||
| 08/24/2022 | Ancient Rome's El Dorado | Science | |||||
| 10/23/2022 | Egypt's Lost Labyrinth | Science | |||||
| 01/19/2023 | Mystery of the Fallen Star | Science | |||||
| 01/26/2023 | Indiana's War Factory | Science | |||||
| 02/02/2023 | Turkey's Lost Terror Dome | Science | |||||
| 02/09/2023 | Blood Feud of Gresham Castle | Science | |||||
| 02/16/2023 | The Boneyard of Arizona | Science | |||||
| 02/23/2023 | Nevada's Mystery Marking | Science | |||||
| 03/02/2023 | Ghost Ship of Ireland | Science | |||||
| 03/09/2023 | Secrets of Biosphere 2 | Science | |||||
| 03/16/2023 | Arctic Hunters of Norway | Science | |||||
| 11/13/2022 | -001 | Pompeii's Mysterious Twin | Science | ||||
| 02/10/2015 | 01-001 | Lake of Blood | Science | ||||
| 01/26/2016 | 02-001 | Finding Vietnam's Lost POWs | Science | 0.63 | |||
| 11/15/2016 | 03-001 | Lost Treasure of the Grand Canyon | Science | ||||
| 10/17/2017 | 04-001 | Dracula's Tomb | Science | 0.39 | |||
| 06/06/2019 | 06-001 | World's Deadliest Threats | Science | ||||
| 03/11/2021 | 09-001 | Curse of the Amazon Nazis | Science | ||||
| 10/24/2021 | 10-001 | Australia's Nuclear Desert | Science | ||||
| 06/22/2022 | 11-001 | Secret Soviet Spacecraft | Science | ||||
| 03/18/2017 | Special | Here Be Monsters | Science | ||||
| 03/25/2017 | Special | Into the Unknown | Science | ||||
| 04/01/2017 | Special | Secrets and Lies | Science | ||||
| 04/08/2017 | Special | Forbidden Places | Science | ||||
| 04/15/2017 | Special | Bible's Greatest Secrets | Science | ||||
| 04/22/2017 | Special | Curses and Legends | Science | ||||
| 04/29/2017 | Special | Strangest Things | Science | ||||
| 05/06/2017 | Special | Expedition Truth | Science | ||||
| 05/13/2017 | Special | Lost Worlds | Science | ||||
| 05/27/2017 | Special | Uncharted Waters | Science | ||||
| 06/03/2017 | Special | Scandal and Sin | Science | ||||
| 06/10/2017 | Special | Journeys to the Edge | Science | ||||
| 07/08/2017 | Special | Riddles and Relics | Science | ||||
| 07/29/2017 | Special | Hell on Earth | Science | ||||
| 08/05/2017 | Special | Expedition Strange | Science | ||||
| 08/12/2017 | Special | Lies and Legends | Science | ||||
| 08/19/2017 | Special | Extreme Adventures | Science | ||||
| 09/02/2017 | Special | Wicked Things | Science | ||||
| 09/09/2017 | Special | Odysseys to the Edge | Science | ||||
| 09/16/2017 | Special | Investigation Unknown | Science |
