Underwater explorers search for the wreck of a ship believed to have gone missing over 100 years ago in the Bermuda Triangle. What they discover is a tale of tragedy, but their investigation brings closure to the families of those lost at sea.

After the US launched an attack on the Japanese imperial fleet in Micronesia during WWII, Chuuk Lagoon becomes home to one of the greatest underwater graveyards in the world. Explorers find an unknown wreck using sonar.

The discovery of a wreck fitted with a large deck gun off the coast of Florida sends a team of underwater explorers on a mission to discover the identity of a ship that simply shouldn't exist.

The 19th-century schooner discovered in Lake Erie, just off the coast of Ohio, might be the oldest shipwreck ever found. If it is the ancient Lake Serpent schooner, it can help answer a lot of questions about the discovery of Ohio.

Divers explore a newly discovered wreck and investigate the story of the SS Justicia, which became embroiled in a 24-hour-long battle with a pack of German U-boats at the height of WWI. Her sinking was celebrated in Germany and mourned in Britain.

Experts investigate 25 shipwrecks that lie beneath the waves of the North Sea, relics of the biggest naval battle in history: the Battle of Jutland. It took place at the heart of WWI and an overconfident Royal Navy expected it to be a walkover.