Where is Malaysian Airlines flight MH370? CGI reconstruction and unprecedented access to key personnel in sea floor searches reveal the challenges of locating aircraft that go missing in the deep ocean. How did MH370 crash without a trace and why has modern technology failed to pinpoint the wreckage? Drain the Oceans goes inside the longest, most expensive search in commercial aviation history.

The Battle of Jutland was the most violent sea battle in history, fought in 1916 between the British and German fleets. After a day of carnage, both sides claimed victory. But who really won? Maritime archaeologists and historians drain the North Sea to investigate the most devastating battleships of WWI and find out what happened to them once the firing was over. Also examined is the scuttling of the German fleet at Scapa Flow.

The China seas are the most fiercely contested and mysterious waters on the planet. We expose the remains of the biggest battleship ever put on the water - the Yamato - and uncover other treasures and mysteries from past centuries.

The Nile was once home to the ancient Egyptians, one of the greatest civilizations on Earth. Scientific data, combined with computer graphics, drain the Nile's waters — and surrounding sand — to reveal a lost wonder of the ancient world, monumental fortresses, and the origins of ancient Egyptians' obsession with the afterlife.

The Pacific Ring of Fire is an underwater hotbed of volcanoes, mega-quakes, and giant tsunamis. Along its edges, 500 million people live in ever-present danger. Combining CGI with cutting-edge ocean-mapping technology, we drain the Pacific Ocean to reveal the deadly geological forces behind Earth's most destructive natural disasters, and uncover catastrophic threats lying just off the coasts of Seattle, Tokyo, and New Zealand.

Exciting evidence emerges of civilizations lost under the waves. But are these ancient cities the long sought-after Atlantis or accidents of geology?

For centuries treasure ships plied the oceans of the world, packed with silver, gold and precious stones. Many of them lie undiscovered on the sea floor. Using the latest underwater scanning technology and computer graphics, marine archaeologists and treasure hunters go in search of sunken riches. Draining the oceans reveals the richest wrecks ever found.

In ancient times, the Mediterranean was home to some of the greatest civilizations the world has ever seen. Scientific data, combined with computer graphics, can drain the sea to unlock mysteries about the rise and fall of the Minoans, the Greeks, the Carthaginians and the mighty Romans, while unveiling the powerful natural forces at work in this unique region.

Draining the Gulf of Mexico brings deadly secrets back to the surface, proving beyond doubt that the story of North America — through trade, slavery, war, the oil industry and even the death of the dinosaurs — can be understood only by looking deep below the waves.

Lost secrets of the Nazi war machine are shown to be hidden deep underwater, and the nature of these long hidden mysteries are revealed and discussed as the water protecting these lost locations is drained away for further study.

We think we know Hitler's plans to dominate the world. But there's an untold story of how the Nazis waged a secret war across the world's oceans. Marine archaeologists and historians go in search of Hitler's secrets, hidden deep underwater. Scientific data combines with computer graphics to drain the oceans to investigate the lost wrecks of World War II.

Cutting-edge technology is used to explore the secrets of pirates, gangsters and villains that were swallowed up by the sea. Draining the Ocean to reveal Port Royal, the sunken Pirate City and the landscape around Alcatraz.

This special is a compilation of 'Drain Pirate City' & 'Drain Alcatraz' from 2017.

Port Royal, the 'wickedest city on Earth', famous for its Caribbean pirates, liquor, is torn apart on June 7th 1692 by quake and tsunami. Two thirds of buildings are sucked into the ocean, the rest buried where they sink. 2,000 die. Marine archaeologist Jon Henderson goes in search of what happened. Scientific data combines with computer graphics to DRAIN the waters to investigate final moments and resurrect past secrets.

The most famous shipwreck in the world, the Titanic, lies more than 12,000 feet down in the icy waters of the Atlantic Ocean. Since the discovery of the wreck in 1985, there have been numerous expeditions to the site, but until now, no one has ever recorded the full extent of what really remains on this remote area of seabed.

In this one-hour special, National Geographic Channel explores the Bermuda Triangle's ominous reputation by draining the water from it to see what exactly lies below the surface of the mythical triangle. With the aid of data from sophisticated sonar surveys, see what the ocean floor looks like below the Bermuda Triangle.

North America's Great Lakes are the largest system of free fresh water on earth, wielding huge influence on the continent. Over 34 million people live by their shores in some of greatest cities in the world. This groundbreaking television program pulls a virtual plug on the huge lakes, using computer-generated imagery to reveal hidden secrets of their human history and changing geological past.