Maritime mysteries—old and new—come to life in this series, combining scientific data and digital re-creations to reveal shipwrecks, treasures, and sunken cities on the bottom of lakes, seas and oceans around the world.
Is this the best episode?
The peak run. Top 40% of seasons by average rating — consecutive, with an average of 6.35.
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Craig Sechler
Self - Narrator (voice)
All 54 episodes plotted by IMDb rating
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This may take a moment for shows with many seasons.
10 episodes • 2018Avg: 6.5Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Nazi Secrets | May 28, 2018 | 6.3 |
| 2 | Gulf of Mexico | Jun 4, 2018 | 7.3 |
| 3 | Lost Worlds of the Mediterranean | Jun 11, 2018 | 6.5 |
| 4 | Sunken Treasures | Jun 18, 2018 | 6.0 |
| 5 | Legends of Atlantis | Jun 25, 2018 | 6.3 |
| 6 | Deadly Pacific | Jul 2, 2018 | 6.5 |
| 7 | Egypt's Lost Wonders | Jul 9, 2018 | 7.0 |
| 8 | Mysteries of the China Seas | Jul 16, 2018 | 7.0 |
| 9 | Ultimate Battleships | Jul 23, 2018 | 6.5 |
| 10 | Malaysia Airlines 370 | Jul 30, 2018 | 5.5 |
15 episodes • 2019Avg: 6.2Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Secrets of D-Day | Jun 3, 2019 | 6.5 |
| 2 | Secrets of New York City | Jun 10, 2019 | 6.0 |
| 3 | Killer U-Boats | Jun 17, 2019 | 6.5 |
| 4 | Buried Secrets of the Gold Rush | Jul 1, 2019 | 5.5 |
| 5 | Secrets of the Civil War | Jul 22, 2019 | 7.0 |
| 6 | Lost Nukes of The Cold War | Jul 29, 2019 | 6.0 |
| 7 | Secrets of The Spanish Armada | Aug 5, 2019 | 6.5 |
| 8 | Pacific War Megawrecks | Aug 12, 2019 | 6.0 |
| 9 | Thai Cave Rescue | Sep 2, 2019 | 5.0 |
| 10 | London's Secret History | Sep 9, 2019 | 8.0 |
| 11 | Secrets of Loch Ness | Sep 16, 2019 | 4.0 |
| 12 | Hitler's Killer Warships | Sep 23, 2019 | 6.0 |
| 13 | Lost Giants | Sep 30, 2019 | 7.0 |
| 14 | Pacific Shockwave | Oct 7, 2019 | 6.0 |
| 15 | Rise of The Roman Empire | Oct 14, 2019 | 7.0 |
10 episodes • 2020Avg: 5.2Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Atomic Ghost Fleet | May 5, 2020 | 4.0 |
| 2 | The Viking Seas | May 5, 2020 | 6.0 |
| 3 | Egypt's Sunken City | May 12, 2020 | 5.5 |
| 4 | The Battle of Britain | May 19, 2020 | 5.0 |
| 5 | Pirate Ships of the Caribbean | May 26, 2020 | 5.0 |
| 6 | The American Revolution | Jun 2, 2020 | 4.0 |
| 7 | Raiders of the Civil War | Jun 9, 2020 | 5.0 |
| 8 | The Last Wrecks of WWII | Jun 16, 2020 | 6.0 |
| 9 | Chicago | Jun 23, 2020 | 5.5 |
| 10 | America's Last Slave Ship | Oct 18, 2020 | 6.0 |
8 episodes • 2021Avg: 4.6Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Wild West | Aug 2, 2021 | 4.0 |
| 2 | The Battle for the Black Swan | Aug 2, 2021 | 6.0 |
| 3 | Hollywood | Aug 9, 2021 | 4.0 |
| 4 | The First Americans | Aug 9, 2021 | 5.0 |
| 5 | Venice's Lost Empire | Aug 9, 2021 | 5.0 |
| 6 | Hurricane Apocalypse | Aug 17, 2021 | 4.0 |
| 7 | The Great Barrier Reef | Aug 23, 2021 | 4.0 |
| 8 | Sea of Secrets | Aug 23, 2021 | 5.0 |
6 episodes • 2022Avg: 4.4Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Secrets of Pompeii's Dead | Nov 14, 2022 | 5.0 |
| 2 | The Amber Room | Nov 21, 2022 | 0.0 |
| 3 | Pearl Harbor | Nov 28, 2022 | 4.0 |
| 4 | The Alamo | Dec 5, 2022 | 4.0 |
| 5 | Maya Collapse | Dec 11, 2022 | 5.0 |
| 6 | Narcos | Dec 19, 2022 | 4.0 |
6 episodes • 2023Avg: 6.0
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Alaska | Mar 5, 2023 | 5.5 |
| 2 | Rise of the Mob | Mar 12, 2023 | 6.0 |
| 3 | Secrets of the Dinosaurs | Mar 19, 2023 | 6.5 |
| 4 | The Myth of the Pacific Pirate Ship | Mar 26, 2023 | 7.0 |
| 5 | Invasion USA | Apr 2, 2023 | 5.5 |
| 6 | $20 Million Time Bomb | Apr 9, 2023 | 5.5 |
