4.0
S4E1 - The Wild West
Uncovered clues from a famous Montana battleground, a 19th-century steamboat and a frontier ghost town reveal surprising truths about the Wild West.
Aug. 2, 2021, midnight
6.0
S4E2 - The Battle for the Black Swan
Archaeologists and treasure hunters battle it out over half a billion dollars worth of gold and silver. Who will win the Battle for the Black Swan?
Aug. 2, 2021, midnight
4.0
S4E3 - Hollywood
From a buried film set to a WW1 Navy ship and old fishing barge, we discover the role these ruins played in Hollywood movie-making history.
Aug. 9, 2021, midnight
5.0
S4E4 - The First Americans
Clues from a 13,000-year-old skeleton and a submerged coastline reveal surprising insights about the first humans to arrive in the Americas.
Aug. 9, 2021, midnight
5.0
S4E5 - Venice's Lost Empire
A 14th-century galley entombed in mud, a 16th-century hoard of luxury cargo, and a gruesome discovery reveal the rise and fall of the Venetian Empire.
Aug. 9, 2021, midnight
4.0
S4E6 - Hurricane Apocalypse
Remnants of colonization attempts, a revolutionary refugee ship and submerged subway cars reveal hurricanes' impacts on America's past and its future.
Aug. 17, 2021, midnight
4.0
S4E7 - The Great Barrier Reef
The mysterious sinking of Australia’s “Titanic”, a warship on a dangerous mission, and a ROV expedition searching for clues at the bottom of the reef.
Aug. 23, 2021, midnight
5.0
S4E8 - Sea of Secrets
The Black Sea is a place of myth and legend and ships have sailed on its waters for millennia. Three wrecks unlock secrets of this mysterious sea.Remnants of colonization attempts, a revolutionary refugee ship and submerged subway cars reveal hurricanes' impacts on America's past and its future.
Aug. 23, 2021, midnight