The China Seas, the Gulf of Mexico, the Mediterranean, the Nile, the Pacific Rim, the Indian Ocean, the Atlantic Ocean and the Baltic Sea are among the sites explored throughout the series.

Putting water's influence aside, the series aims to explain how vessels sank, how modern tech operates in challenging climates, what ancient geological formations can tell us about life on Earth, where Nazi secrets may reside and why the search for Atlantis is still on.