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

New discoveries reveal treasures of a ghost fleet of Japanese ships at the bottom of the South Pacific, and using cutting-edge underwater technology, experts are investigating a top-secret superweapon that could have changed the course of World War II.

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

When 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.

A cutting-edge investigation into an deep-sea graveyard of twenty-five shipwrecks reveals the dark secrets of the biggest naval battle in history, and using the latest tech, experts follow new evidence into the mysterious abyss of long-lost battleships.