Explore the world’s most fascinating, strange and inexplicable mysteries. Each episode features compelling contributions from scientists, historians, witnesses and experiencers—each seeking to shed light on how the seemingly impossible actually can happen.
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The peak run. Top 40% of seasons by average rating — consecutive, with an average of 7.57.
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William Shatner
Self - Host
All 109 episodes plotted by IMDb rating
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16 episodes • 2019Avg: 6.2Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Evil Places | Jul 19, 2019 | 6.8 |
| 2 | Mysterious Structures | Jul 26, 2019 | 7.3 |
| 3 | Strange Creatures | Aug 2, 2019 | 6.0 |
| 4 | Unnatural Nature | Aug 9, 2019 | 6.5 |
| 5 | Bizarre Rituals | Aug 16, 2019 | 5.0 |
| 6 | Life Beyond Death | Aug 23, 2019 | 6.5 |
| 7 | Mysteries of the Mind | Aug 30, 2019 | 6.5 |
| 8 | Incredible Survivors | Sep 6, 2019 | 6.0 |
| 9 | The Oak Island Curse | Feb 29, 2020 | 5.5 |
| 10 | Dark Prophecies | Mar 7, 2020 | 6.0 |
| 11 | Lost Civilizations | Mar 14, 2020 | 6.0 |
| 12 | Deadly Cults | Mar 21, 2020 | 6.5 |
| 13 | Extreme Weather Mysteries | Mar 28, 2020 | 6.5 |
| 14 | Mysterious Stones | Apr 11, 2020 | 6.0 |
| 15 | Vampires and Werewolves | Apr 18, 2020 | 5.0 |
| 16 | Amazing Animal Abilites | Apr 25, 2020 | 6.5 |
18 episodes • 2020Avg: 5.6Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Greatest Escapes | Jul 11, 2020 | 7.5 |
| 2 | Superhuman Senses | Jul 18, 2020 | 6.5 |
| 3 | Mysterious Curses | Jul 25, 2020 | 6.0 |
| 4 | The Truth About UFO's | Aug 1, 2020 | 6.5 |
| 5 | The Underground World | Aug 8, 2020 | 6.0 |
| 6 | Leading Double Lives | Aug 15, 2020 | 5.0 |
| 7 | Mysteries of the Bible | Jan 1, 2021 | 6.0 |
| 8 | Mysterious Mummies | Jan 8, 2021 | 5.0 |
| 9 | Secrets of America's Monuments | Jan 15, 2021 | 6.0 |
| 10 | The Search for Atlantis | Jan 22, 2021 | 5.0 |
| 11 | Extraordinary Engineering | Jan 29, 2021 | 5.0 |
| 12 | The Power Of Gold | Feb 19, 2021 | 6.0 |
| 13 | The Truth About Bigfoot | Feb 26, 2021 | 6.0 |
| 14 | Bizarre Vanishings | Mar 5, 2021 | 5.0 |
| 15 | Serial Killers | Mar 12, 2021 | 5.0 |
| 16 | The Mystery of Plagues | Apr 2, 2021 | 5.0 |
| 17 | Mysteries of the Moon | Apr 9, 2021 | 5.0 |
| 18 | Outrageous Robberies | Apr 16, 2021 | 5.0 |
7 episodes • 2021Avg: 6.7
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Hunt for Hidden Treasures | Nov 5, 2021 | 7.0 |
| 2 | Satanic Encounters | Nov 12, 2021 | 7.0 |
| 3 | The Search for the Ark of the Covenant | Nov 19, 2021 | 6.0 |
| 4 | Apocalypse When? | Nov 26, 2021 | 7.0 |
| 5 | Secrets of the Immortals | Dec 3, 2021 | 7.0 |
| 6 | Sacred Bones | Dec 10, 2021 | 6.0 |
| 7 | Mysteries of Mars | Dec 17, 2021 | 7.0 |
22 episodes • 2022Avg: 6.5
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Mysterious Ancient Ruins | Apr 1, 2022 | 6.5 |
| 2 | The Mystery of Genius | Apr 1, 2022 | 6.5 |
| 3 | What Lies Below? | Apr 8, 2022 | 6.5 |
| 4 | Secrets of Abandoned Places | Apr 15, 2022 | 8.0 |
| 5 | Acts of God | Apr 22, 2022 | 7.0 |
| 6 | Serial Killer Creatures | May 6, 2022 | 6.2 |
| 7 | Mysterious Tombs | May 13, 2022 | 6.5 |
| 8 | Uncanny Curses | May 20, 2022 | 6.2 |
| 9 | Superhuman Feats | May 27, 2022 | 6.2 |
| 10 | Mysteries of the Missing Link | Jun 3, 2022 | 6.5 |
| 11 | Surviving the Impossible | Jun 10, 2022 | 7.2 |
| 12 | The Search For King Arthur | Jun 24, 2022 | 6.5 |
| 13 | Wonders of the Ancient World | Oct 7, 2022 | 6.5 |
| 14 | The Hunt For Jack The Ripper | Oct 14, 2022 | 7.0 |
| 15 | The Search for Extraterrestrial Life | Oct 21, 2022 | 6.5 |
| 16 | Real Life Monsters | Oct 28, 2022 | 6.2 |
| 17 | America's Lost Treasures | Nov 4, 2022 | 6.2 |
| 18 | The Bermuda Triangle and the Beyond | Nov 18, 2022 | 6.2 |
| 19 | Secrets of the Founding Fathers | Nov 25, 2022 | 6.2 |
| 20 | The Weird Wild West | Dec 2, 2022 | 6.2 |
| 21 | Devastating Disasters | Dec 9, 2022 | 6.2 |
| 22 | Mysterious Monoliths | Dec 16, 2022 | 5.8 |
10 episodes • 2023Avg: 6.3
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Lost Cities | Mar 31, 2023 | 6.5 |
| 2 | Tales of the Dearly Departed | Apr 7, 2023 | 6.7 |
| 3 | Curses Unleashed | Apr 14, 2023 | 6.3 |
| 4 | Earth's Unsolved Mysteries | Apr 21, 2023 | 7.0 |
| 5 | The Power of Prophecy | May 5, 2023 | 6.3 |
| 6 | Mysterious Monsters | May 12, 2023 | 6.3 |
| 7 | Sacred Rituals | May 19, 2023 | 6.0 |
| 8 | UFO Hotspots | Jun 2, 2023 | 5.7 |
| 9 | Extraordinary Structures | Jun 9, 2023 | 6.3 |
| 10 | Holy Relics | Jun 16, 2023 | 6.0 |
10 episodes • 2023Avg: 7.5Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The World Beneath Our Feet | Oct 6, 2023 | 7.5 |
| 2 | The Time Travelers | Oct 13, 2023 | 7.9 |
| 3 | Secrets of Ancient Structures | Oct 20, 2023 | 7.3 |
| 4 | Mysteries of the Vikings | Nov 3, 2023 | 8.0 |
| 5 | Strange Stories of the Presidents | Nov 10, 2023 | 7.3 |
| 6 | Bizarre Afflictions | Nov 17, 2023 | 7.3 |
| 7 | Strange Technology | Dec 1, 2023 | 6.7 |
| 8 | Unbreakable Codes | Dec 8, 2023 | 7.3 |
| 9 | Strange Stories of World War II | Dec 15, 2023 | 7.9 |
| 10 | Monsters Among Us | Dec 22, 2023 | 8.0 |
18 episodes • 2024Avg: 7.6Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Golden Age of Pirates | Oct 4, 2024 | 7.3 |
| 2 | Impossible Ancient Inventions | Oct 11, 2024 | 7.0 |
| 3 | The Lost | Oct 18, 2024 | 7.3 |
| 4 | Alien Contagion | Oct 25, 2024 | 7.3 |
| 5 | Ancient Bible Relics | Nov 1, 2024 | 7.0 |
| 6 | Islands of the Damned | Nov 8, 2024 | 7.0 |
| 7 | Tales From Antarctica | Jun 6, 2025 | 8.3 |
| 8 | Robot Revolution | Jun 13, 2025 | 8.5 |
| 9 | Secret Societies | Jun 20, 2025 | 8.0 |
| 10 | Secrets of the Spies | Jun 27, 2025 | 8.0 |
| 11 | Secrets of the Civil War | Jul 11, 2025 | 8.0 |
| 12 | Mysterious Urban Legends | Jul 18, 2025 | 8.5 |
| 13 | Mad Scientists | Jul 25, 2025 | 8.0 |
| 14 | Strange Tales from the American Frontier | Aug 1, 2025 | 8.0 |
| 15 | Terrors of the Deep | Oct 3, 2025 | 8.5 |
| 16 | Unlocking the Sixth Sense | Oct 10, 2025 | 7.5 |
| 17 | The World's Deadliest Assassins | Oct 17, 2025 | 8.0 |
| 18 | Mysteries of the Underground | Oct 31, 2025 | 5.0 |
12 episodes • 2026Avg: 6.0
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Impossible Ancient Structures | Jan 16, 2026 | 7.0 |
| 2 | Nightmares and Dreams | Jan 23, 2026 | 6.0 |
| 3 | Unnatural Disasters | Jan 30, 2026 | 6.0 |
| 4 | Mysteries of Africa | Feb 13, 2026 | 5.0 |
| 5 | Mind Over Matter | Feb 20, 2026 | 6.0 |
| 6 | Mighty Kingdoms Unearthed | Feb 27, 2026 | 6.0 |
| 7 | Dangerous Places | May 29, 2026 | 6.0 |
| 8 | Satan's Army | Jun 5, 2026 | 0.0 |
| 9 | Top Secret Projects | Jun 12, 2026 | 6.0 |
| 10 | Mystery Of The Dinosaurs | Jun 26, 2026 | 0.0 |
| 11 | The Lost World of the Aztecs | Jul 10, 2026 | 0.0 |
| 12 | Objects of Power | Jul 17, 2026 | 0.0 |
