A cutting-edge investigation into a deep-sea graveyard of twenty-five shipwrecks reveals the dark secrets of the Battle of Jutland, the biggest naval battle of the First World War. Using the latest tech, experts follow new evidence into the mysterious abyss of long-lost battleships.

When the SS Justicia, a sister ship of the Titanic, gets embroiled in war with a hidden enemy, the former luxury liner is sent to the bottom of the ocean; new discoveries and cutting-edge underwater technology might finally reveal the secret history of its sinking.

At the bottom of Lake Erie, a mysterious shipwreck could be the oldest wreck in America's most notorious ship graveyard, the schooner Lake Serpent. Experts investigate new leads in this 200-year-old cold case using cutting-edge underwater archaeological methods.

New discoveries reveal the treasures of a ghost fleet of Japanese ships at the bottom of the South Pacific in the Chuuk Lagoon, also known as Truk. Using cutting-edge underwater technology, experts are investigating a top-secret superweapon that could have changed the course of World War II.

The disappearance of the SS Cotopaxi helped launch the legend of the Bermuda Triangle; today, a team of experts follows fresh leads with cutting-edge tech to investigate if a mysterious wreck off the coast of Florida is indeed the long-lost ship.