Join experts in undersea exploration as they launch a deep-sea vehicle into the ocean. The team launch an underwater drone which provides a live feed of the complex underwater environment, consisting of a sandstorm and a far more turbulent terrain than they could have ever anticipated. Witness undersea exploration combine with innovative visualisations in brand new episodes of Drain The Oceans, tonight at 8pm, only on National Geographic UK. | National Geographic UK

We're rolling back the waves to bring these underwater secrets to the surface. A new season of Drain the Oceans premieres Monday at 9/8c. | National Geographic TV

The story of Hitler's vision to conquer the world using high-tech battleships, tonight's episode of Drain The Oceans reveals the rise and fall of the Third Reich's deadly fleet. New episode at 9/8c | National Geographic TV

Take a video tour of the main sites of the D-Day landing beaches... 🎥 👌 ▶ http://bit.ly/D-Day-Normandy | Normandy, France

More than 70% of the Earth's surface is covered in water. That's a lot of buried secrets.... Tune in for Drain the Oceans, from Tuesday August 7 at 8.30pm AEST on National Geographic. | National Geographic Australia

The Mississippi River has a rich history in the U.S. and Clint Willson hopes to discover some of the river's underwater secrets. #DrainTheOceans | National Geographic TV

Research into the US Naval Archives reveals why a WWII fighter plane is in the middle of Lake Michigan. | National Geographic TV