Drain the Oceans

20184 series
Available on
Nat Geo

Maritime mysteries - old and new - come to life in this 10-episode series, combining scientific data and digital re-creations to reveal shipwrecks, treasures, and sunken cities on the bottom of lakes, seas and oceans around the world. Innovative technology allows viewers to see what lies on the floors of large bodies of water such as the Gulf of Mexico, the Nile, the Indian Ocean, the Baltic Sea and the Atlantic Ocean as if they had been drained. Then, in a quest to explain natural wonders and man-made catastrophes, stories tell of how vessels sank, what ancient geological formations reveal about life on Earth, where Nazi secrets now reside, and why so many continue to search for the legendary city of Atlantis.

Lost Worlds of the Mediterranean: Episode Image
Episode 3Lost Worlds of the Mediterranean

The plug is pulled on the glittering Med, unlocking mysteries of the Greeks and mighty Romans and revealing powerful forces lurking underwater. 7+

Sunken Treasures: Episode Image
Episode 4Sunken Treasures

Archaeologists and treasure hunters search the ocean floor for some of the richest shipwrecks ever to be discovered. (S1, ep 6) 7+

Legends of Atlantis: Episode Image
Episode 5Legends of Atlantis

Experts explore exciting evidence of underwater cities. But are they proof of ancient sites and civilisations or simply accidents of geology? (S1, ep 5) 7+

Mysteries of the China Seas: Episode Image
Episode 8Mysteries of the China Seas

The story of the biggest battleship ever put to sea and an underwater threat that could instantly destroy the World Wide Web. (S1, ep 7) 7+

How to watch Drain the Oceans