Ancient Aliens is counting down the top ten mysteries of the deep, from sunken continents to puzzling ruins on the ocean floor and even artifacts that might be remnants of Atlantis. Could these underwater mysteries provide a record of extraterrestrial visitation?
Stars: Giorgio A. Tsoukalos, Robert Schoch, Hugh Newman
Director(s): Jon A. Levy
Writer(s): Kevin Burns, Max Thompson, Katie Raines