Drain the Oceans — Season 4

01 The Wild West
Aug 2, 202147m★ 4.0
Uncovered clues from a famous Montana battleground, a 19th-century steamboat and a frontier ghost town reveal surprising truths about the Wild West.

02 The Battle for the Black Swan
Aug 2, 202147m★ 6.0
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?

03 Hollywood
Aug 9, 202147m★ 4.0
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.

04 The First Americans
Aug 9, 202147m★ 5.0
Clues from a 13,000-year-old skeleton and a submerged coastline reveal surprising insights about the first humans to arrive in the Americas.

05 Venice's Lost Empire
Aug 9, 202147m★ 5.0
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.

06 Hurricane Apocalypse
Aug 17, 202147m★ 4.0
Remnants of colonization attempts, a revolutionary refugee ship and submerged subway cars reveal hurricanes' impacts on America's past and its future.

07 The Great Barrier Reef
Aug 23, 202147m★ 4.0
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.

08 Sea of Secrets
Aug 23, 202147m★ 5.0
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.