About this season
Explore a world never seen before a world hidden under miles of water, the landscape of the seabed. Join expeditions to dive long-lost vessels, discover ancient sites and follow the scientists who are probing the darkest and deepest corners of this underwater world. Computer generated, three-dimensional maps and imagery will offer a first glimpse of these mysteries.
Episodes (3)
1. Sunken Weapons of War
An underwater look at the weapon that destroyed one of the Civil War's greatest ships, as well as the torpedo technology that changed military warfare.
2. America's Lost Treasures
Experts explore how the history of America is hidden beneath its harbours, shorelines and street.
3. Disasters at Sea
The team explores the watery graves of passenger ships and war machines as they investigate what led to such shocking maritime disasters.