Browse all 3 episodes in this season, including available images, air dates, runtimes, ratings and episode summaries from TMDB.
Episode 1
An underwater look at the weapon that destroyed one of the Civil War's greatest ships, as well as the torpedo technology that changed military warfare.
Episode 2
Experts explore how the history of America is hidden beneath its harbours, shorelines and street.
Episode 3
The team explores the watery graves of passenger ships and war machines as they investigate what led to such shocking maritime disasters.