Season 12
10 episodes · Jan 12, 2023
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S12E1Bullseye in the Sky
Jan 12, 202342mSatellite capture a bizarre pattern obscuring an eastern Atlantic island.
S12E2Mystery of the Fallen Star
Jan 19, 202342mAerial archaeologists use laser imaging to capture a distinct star-shaped pattern carved into the marsh of a Florida swamp; experts investigate and reveal a lost Civil War fort linked to an extraordinary community with a tragic past.
S12E3Indiana's War Factory
Jan 26, 202342mSatellite images capture a large compound of abandoned structures that are overgrown with vegetation in Indiana; experts investigate and uncover a derelict WWII munitions factory that played a crucial role in US military history.
S12E4Turkey's Lost Terror Dome
Feb 2, 202342mAerial drone imaging captures a circular man-made structure that appears to be centuries-old in the remote forests of Aydin, Turkey; experts investigate a lost ancient amphitheater with a history steeped in gladiatorial bloodshed.
S12E5Blood Feud of Gresham Castle
Feb 9, 202342mSatellite images capture a mysterious fortification concealed beneath a patch of woodland in the remote stretches of Norfolk, England; experts investigate rival royal families and a lost castle that was destroyed during a medieval blood feud.
S12E6The Boneyard of Arizona
Feb 16, 202342mSatellite images capture miles of aircraft precisely arranged in the vast Arizona desert; experts investigate the largest aircraft storage facility on Earth and the rotting remains of a defining moment in Cold War history.
S12E7Nevada's Mystery Marking
Feb 23, 202342mSatellite images capture an enormous X shape mysteriously carved with precision in the remote Nevada desert; experts investigate a military emergency landing field linked to one of the most astonishing test programs in aviation history.
S12E8Ghost Ship of Ireland
Mar 2, 202342mSatellite images reveal a mysterious vessel that suddenly appears marooned on a remote stretch of Ireland's southern coast; experts investigate and uncover a bizarre journey near the Bermuda Triangle that resulted in a US Coast Guard interception.
S12E9Secrets of Biosphere 2
Mar 9, 202342mSatellite images capture a mysterious group of pyramid-shaped structures in the arid, desert landscape of Arizona; experts investigate a highly controversial research facility designed to prepare humanity for life on another world.
S12E10Arctic Hunters of Norway
Mar 16, 2023Aerial archaeologists capture a series of mysterious dots buried beneath the remote, frozen landscape of Finnmark, Norway; experts investigate and reveal revolutionary hunting techniques developed by the oldest surviving Norwegian tribe.