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.

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.