Aired: 1/7/1979
Shows how gold is mined and how it affects our lives.
Aired: 1/28/1979
Aired: 3/4/1979
Shows how drought, poachers, and conflict have forced the elephants of east Africa to migrate.
Aired: 4/1/1979
Follows explorer Thor Heyerdahl's crew as they sail their reed boat over routes believed to have been followed by Sumerian traders 5000 years ago.