The Last Frontier: Shipwrecks: Graveyards of the Deep

Lost In Time (3x4)

Air date: Aug 16, 1988

The Foundations divers team up with an Israeli group to search for a shipwreck in the Red Sea, which they later establish sank some 2000 years ago. Much of the work performed is in an effort to establish the wreck's nationality, which comes about through the discovery of a very unusual artifact.