Secrets Unlocked

Why Watch
"Investigate history's most enduring enigmas through cutting-edge science and dramatic historical re-evaluations across fascinating global archives."
Tone: Inquisitive, Historical, Investigative
AI Critic Analysis
Series Deep Dive:

Smithsonian Channel delivers an exacting historical investigation in Secrets Unlocked. Across its run, the series applies modern forensic analysis and archival research to legendary relics and events. Blending insightful expert testimony with engaging storytelling, Secrets Unlocked challenges long-accepted orthodoxies surrounding famous icons. The concluded season stands as an essential, complete record for history enthusiasts seeking definitive answers to persistent ancient and modern puzzles.

Analysis Refined:March 2026
Scheduled next refinement: in 378 days
Season: 1
Watched? # Air Date Episode Name
E1 Mar 09, 2020 Garden of Eden
E2 Mar 09, 2020 Jonah and the Whale
E3 Mar 16, 2020 Shrunken Heads
E4 Mar 16, 2020 Ark of the Covenant
E5 Mar 23, 2020 The Copper Scroll
E6 Mar 23, 2020 The Turin Shroud
E7 Mar 30, 2020 King Solomon's Mines
E8 Mar 30, 2020 Spear of Destiny
E9 Apr 06, 2020 Plagues of Egypt
E10 Apr 06, 2020 The Holy Grail
E11 Apr 13, 2020 Beasts of the Pharaohs
E12 Apr 13, 2020 Great Pyramid
E13 Apr 20, 2020 The Sphinx
E14 Apr 20, 2020 Nefertiti
E15 Apr 27, 2020 Tut's Tomb
E16 Apr 27, 2020 Egypt's Lost Princess
E17 May 04, 2020 Egypt's Lost City
E18 May 04, 2020 The Pharaoh in the Suburbs
E19 May 04, 2020 Riddle of Petra
E20 May 11, 2020 America's Lost Pyramid
E21 May 11, 2020 Stonehenge Mystery
E22 May 18, 2020 Bog Bodies
E23 May 18, 2020 Headless Gladiators of York
E24 May 25, 2020 Easter Island
E25 May 25, 2020 Hunt for Atlantis
E26 Jun 01, 2020 Grave of the Vikings
E27 Jun 01, 2020 A Viking Map?
E28 Jun 08, 2020 Golden Raft of El Dorado
E29 Jun 08, 2020 Blackbeard's Ship
E30 Mar 16, 2020 Tower of Babel
Mark Season 1:
Watched / Unwatched
Mark Series:
Watched / Unwatched
Series Legacy & Historical Archive

Franchise Status: Concluded Historical Archive

Secrets Unlocked remains a definitive pillar of television, having concluded its influential run on Smithsonian Channel. Across its investigative episodes, the docuseries skillfully examined iconic archaeological mysteries and legendary historical artifacts through modern forensic science. Hosted by Adam Mastrelli, the production combined cutting-edge technology with scholarly analysis to illuminate human history's most persistent enigmas. By grounding each revelation in rigorous research rather than sensationalism, Secrets Unlocked established a sophisticated benchmark for factual broadcasting that continues to educate curious viewers globally.
Oracle Insights Refined:September 2026
Scheduled next refinement: in 527 days

If you liked Secrets Unlocked:

Technical Details
Network: Smithsonian Channel
Seasons: 1
Years: 2020 - 2020
Genre: Documentary, History
Rating: TV-G
Support us on Facebook
Frequently Asked Questions

Secrets Unlocked concluded its original television run on Smithsonian Channel in 2020 after the broadcast of its primary season. The documentary series finished airing its designated historical investigation slate without an order for additional installments.

The program was produced as a focused documentary limited series examining iconic historical mysteries and artifacts. It fulfilled its planned production run, and Smithsonian Channel shifted programming resources toward new documentary acquisitions rather than renewing it.

Secrets Unlocked consists of a single season containing six standard episodes. Each episode delves into specific historical anomalies and artifacts using modern investigative techniques and forensic science.

There are no credible reports, plans, or announcements regarding a reboot or revival of the series. Smithsonian Channel and its parent entities have not revisited the property since its conclusion.

No official spin-offs, prequels, or cinematic tie-ins were ever created for Secrets Unlocked. It remains a standalone six-part documentary project within Smithsonian Channel's historical investigative catalog.

The series is occasionally available to stream via the Paramount+ platform or through the Smithsonian Channel on-demand app and digital purchase storefronts. Availability can vary depending on regional licensing and broadcast syndication agreements.
FAQ Refined:March 2026
Scheduled next refinement: in 378 days