A monument that may explain why the people of a thriving ancient city vanished from Earth. A tablet that reveals a towering truth about one of the Bible's strangest stories. Evidence that the 10 plagues of Egypt were real natural phenomena. Join us as we follow a team of investigators around the globe, using modern science and technology to uncover ancient mysteries surrounding these and other puzzles from our past. By examining these relics and legends, we hope to gain insights into who we are, where we come from, and where we are going.
You can now watch Secrets online on the following streaming providers in the United States.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Turin Shroud | 2013-08-04 | 60 min |
| Season 1 | Episode 2 | The Sphinx | 2013-08-11 | 60 min |
| Season 1 | Episode 3 | Golden Raft of El Dorado | 2013-08-18 | 60 min |
| Season 1 | Episode 4 | Richard III Revealed | 2013-08-25 | 60 min |
| Season 1 | Episode 5 | A Viking Map? | 2013-09-01 | 60 min |
| Season 1 | Episode 6 | Gospel of Jesus's Wife | 2014-05-05 | 60 min |
| Season 2 | Episode 1 | Easter Island | 2014-10-13 | 60 min |
| Season 2 | Episode 2 | Great Pyramid | 2014-10-20 | 60 min |
| Season 2 | Episode 3 | Nefertiti | 2014-10-27 | 60 min |
| Season 2 | Episode 4 | Ark of the Covenant | 2014-11-03 | 60 min |
| Season 2 | Episode 5 | Spear of Destiny | 2014-11-10 | 60 min |
| Season 2 | Episode 6 | Blackbeard's Ship | 2014-11-17 | 60 min |
| Season 2 | Episode 7 | Great Wall of China | 2015-09-07 | 60 min |
| Season 3 | Episode 1 | Tut's Tomb | 2016-04-25 | 60 min |
| Season 3 | Episode 2 | The Copper Scroll | 2016-05-02 | 60 min |
| Season 3 | Episode 3 | The Holy Grail | 2016-05-09 | 60 min |
| Season 3 | Episode 4 | Egypt's Lost City | 2016-05-16 | 60 min |
| Season 3 | Episode 5 | America's Lost Pyramid | 2016-05-23 | 60 min |
| Season 3 | Episode 6 | Hunt for Atlantis | 2016-05-30 | 60 min |
| Season 4 | Episode 1 | Tower of Babel | 2017-04-24 | 60 min |
| Season 4 | Episode 2 | Riddle of Petra | 2017-05-01 | 60 min |
| Season 4 | Episode 3 | Stonehenge Mystery | 2017-05-08 | 60 min |
| Season 4 | Episode 4 | Headless Gladiators of York | 2017-05-15 | 60 min |
| Season 4 | Episode 5 | Plagues of Egypt | 2017-05-22 | 60 min |
| Season 4 | Episode 6 | Shrunken Heads | 2017-05-29 | 60 min |
| Season 4 | Episode 7 | Bog Bodies | 2017-06-05 | 60 min |
| Season 4 | Episode 8 | Garden of Eden | 2017-06-12 | 60 min |
| Season 5 | Episode 1 | Jonah and the Whale | 2018-09-24 | 60 min |
| Season 5 | Episode 2 | Grave of the Vikings | 2018-10-01 | 60 min |
| Season 5 | Episode 3 | The Pharaoh in the Suburbs | 2018-10-08 | 60 min |
| Season 5 | Episode 4 | Egypt's Lost Princess | 2018-10-15 | 60 min |
| Season 5 | Episode 5 | Beasts of the Pharaohs | 2018-10-22 | 60 min |
| Season 5 | Episode 6 | King Solomon's Mines | 2018-10-29 | 60 min |
| Season 6 | Episode 1 | Tut's Last Mission | 2019-11-18 | 60 min |
| Season 6 | Episode 2 | Viking Murder Mystery | 2019-11-25 | 60 min |
| Season 6 | Episode 3 | Gangs of Pompeii | 2019-12-02 | 60 min |
| Season 6 | Episode 4 | Rome's Sunken City | 2019-12-09 | 60 min |
| Season 6 | Episode 5 | Egypt's Apocalypse Volcano | 2019-12-16 | 60 min |
| Season 6 | Episode 6 | Crucifixion Mystery | 2019-12-23 | 60 min |
| Season 7 | Episode 1 | Cleopatra's Lost City | 2021-08-09 | 60 min |
| Season 7 | Episode 2 | Rome's Secret Weapon | 2021-08-16 | 60 min |
| Season 7 | Episode 3 | Underwater Stonehenge | 2021-08-23 | 60 min |
| Season 7 | Episode 4 | Griffin Warrior | 2021-08-30 | 60 min |
| Season 7 | Episode 5 | Riddle of the Roman Skulls | 2021-09-13 | 60 min |
| Season 7 | Episode 6 | Murdered Pharaoh | 2021-09-20 | 60 min |
