E1 - Sunken Cities

Aired: March 12, 2019

Lost civilizations, mysterious cities and legendary sites have all vanished. Can draining the seas help unlock what caused their demise?

E2 - Treasures of The Deep

Aired: March 19, 2019

For centuries treasure ships sailed the world hunted by pirates, battered by storms and reefs. Only now can we begin to explore what remains of them.

E3 - Sunken War Ships

Aired: March 26, 2019

Under the seas lives a lost graveyard of sunken war ships. Countless vessels from WWI and WWII pepper the seafloor waiting to be explored.

E4 - Stormy Seas

Aired: April 02, 2019

Towering walls of water, powerful winds and churning seas can overwhelm any ship. But what secrets of the stormy seas can now be revealed?

E5 - Sabotage On The High Seas

Aired: April 09, 2019

In warfare, saboteurs are a silent, unseen enemy with advanced weaponry and their element of surprise sending many ships to their final resting place.

E6 - America's Sunken Shores

Aired: April 16, 2019

War, weather and human error have led to some of the worst maritime disasters history. Drained dry we now reveal the mysteries along America’s shores.

E7 - Deep Water Disasters

Aired: April 23, 2019

The seafloor is the world’s biggest tsunami machine and its dangers have remained hidden from view, until now!

E8 - Undersea Empires

Aired: April 30, 2019

Beneath the waters of the world, lies undersea empires and relics of their bloody wars. Can today’s technology uncover these lost empires?