This episode explores three different German U-Boat wrecks from the WWI and WWII with marine archaeologist Dr Innes McCartney. In the story of UC66, we learn how it was the first German U-Boat to be sunk by a plane. In the story of U-Boat U87, we hear how it was sunk after it was rammed by an Allied ship. The final story follows the sinking of U-Boat U480, the world's first stealth sub.

The sea is unpredictable. Critical decisions made in the face of danger make all the difference. What sank the ocean liner Empress of Ireland, causing Canada's worst maritime tragedy? And the enigma of the ship El Faro, lost with all hands. Armed with the latest undersea technology and personal testimony, we climb aboard these doomed ships to discover what set them on the path to catastrophe.

Survivors' stories and world-leading shipwreck investigators uncover how the most powerful warships in history had their weaknesses and paid a fatal price. We witness the catastrophic damage on HMS Hood in one of the deadliest naval engagements in history.

We uncover the remains of warships from the remote Pacific to the deep Atlantic revealing new insights into how the atom bomb changed our world forever. In the Pacific, a marine science team conduct the first ever 3D sonar scan of ships sunk in nuclear blasts in 1946.

This episode tells the stories of two shocking revenge attacks in WWII. In 1944, in retaliation for Pearl Harbor, the Americans launched a massive aerial bombardment of the Japanese fleet in the Pacific - and in the Baltic, the most shocking attack in Maritime history.

he stories of two of the greatest failed invasions in the history of naval warfare. In 1588 King Philip II of Spain assembled his Armada to sail to England and overthrow Queen Elizabeth I. Centuries later, the Allies make massive military miscalculations when their fleet is crushed by Turkish artillery in the Dardanelles.

n the wake of WWI, 74 of the most powerful warships of the German High Seas fleet disappear into the depths of Scapa Flow. We follow maritime archaeologists and historians on an investigation to interrogate the motives, actions, and outcome of the greatest scuttle and act of defiance in wartime history.

Collisions at sea are of the costliest accidents, both financially and to lives. Exploring three historical wrecks - HMS Curacoa, SS City of Chester, and SS Oregon - poignantly demonstrate the devastation. CGI recreates their events, while historian and archaeologist investigations reveal the major risks and causes

Two decaying WWII wrecks, the SS Skytteren and SS Richard Montgomery, are investigated as their dormant cargoes now pose a deadly threat.

Over 100 years ago, two great WWI warships sank off the coast of Orkney, their final moments shrouded in mystery. Rod Macdonald leads an investigation into the HMS Hampshire, which sank with the famous Lord Kitchener on board.