Episode 1: The Wild West
2021-08-0247 min
Uncovered clues from a famous Montana battleground, a 19th-century steamboat and a frontier ghost town reveal surprising truths about the Wild West.
Season guide
Drain the Oceans Season 4 — Episodes and Where to Watch
8 episodes · first aired 2021-08-02
TMDB does not provide a season overview.
Episode guide
Episode 2: The Battle for the Black Swan
2021-08-0247 min
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?
Episode 3: Hollywood
2021-08-0947 min
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.
Episode 4: The First Americans
2021-08-0947 min
Clues from a 13,000-year-old skeleton and a submerged coastline reveal surprising insights about the first humans to arrive in the Americas.
Episode 5: Venice's Lost Empire
2021-08-0947 min
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.
Episode 6: Hurricane Apocalypse
2021-08-1747 min
Remnants of colonization attempts, a revolutionary refugee ship and submerged subway cars reveal hurricanes' impacts on America's past and its future.
Episode 7: The Great Barrier Reef
2021-08-2347 min
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.
Episode 8: Sea of Secrets
2021-08-2347 min
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.
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