Ocean Wreck Investigation

This episode looks at three different German U-Boat wrecks, including UC-66: the first to be sunk by a plane and U480: the world's first stealth sub.

The Empress of Ireland was one of the great ocean liners operating between Europe and North America at the beginning of the 20th century.

Survivors' stories and the best shipwreck investigators uncover how even the most powerful warships had their weaknesses and paid a fatal price.

The remains of five warships demonstrate how the atomic bomb changed the world, with personal testimonies and scientific insight.

How the Americans launched a massive bombardment of the Japanese fleet- and how the German liner Wilhelm Gustloff was torpedoed by a Russian sub.

Two of the greatest failed invasions in the history of naval warfare: how the Spanish Armada was defeated, and why the Allied fleet was crushed in WWI.