The Arctic Circle is one of the last great wildernesses on earth; spend a year in the High Arctic where life is exceptionally entwined with the seasons.

Follow a year in the life of the many animals, including the brown bear, that have learnt to survive in the frozen Taiga forest, which contains a third of the world's trees.

Covering a fifth of the earth's surface, the arctic tundra is one of the coldest and driest places on the planet; discover the balance of the seasons that allows life to thrive.

Discover the beauty of Iceland as the remarkable wildlife of this unique island is revealed, from the Arctic fox to the largest breeding colony in the world of the Atlantic puffin.