Arctic: Life in the Deep Freeze

In the vast icy wastes of the Arctic very little grows. It's dark for months in the winter and the freezing temperatures make it particularly inhospitable. Yet four million people live there thanks to ingenious survival techniques passed down through generations. In Greenland, where food is hard to come by and dogs are a crucial means of transport, Amos and his son Karl-Frederik embark on a remarkable journey across the frozen sea.