The Last Frontier

This episode explores human activity in the polar regions. In the north, Longyearbyen and Norilsk are among the coldest permanent settlements in the world. The Dolgan tribe of northern Russia is dependent on reindeer while the Inuit of Chukotka risk their lives hunting for walruses and collecting guillemot eggs. Also, Special Forces defend the Danish claim to Greenland, and in Alaska, rockets are used to study the spectacular aurora borealis.