One of the greatest unsolved mysteries of the American Civil War! Plunge into deep-sea intrigue and watch as National Geographic goes in search of truth about the ill-fated Confederate submarine H. L. Hunley. Considered the ultimate secret weapon by some, a seagoing coffin by others, this legendary warship will break its 136-year silence at last.

• Approximately 60 minutes
• © 2002
• Not available for shipment outside of the U.S. and Canada
• Watch the Preview
  (Requires Windows Media Player 6.4 or higher)