Architect George Clarke and master craftsman Will Hardie travel to Norway, to discover how a country with some of the harshest weather on the planet has become a leader in small space design. Norwegian craftsmanship and determination puts the country at the forefront of global architecture. George travels by husky sled to a tree house in a forest that can withstand nine tonnes of snowfall and gale force winds. There's also a visit to an ice hotel - the mother of all igloos, complete with 30 rooms, a bar, and even a snow chapel. The boys meet members of the local Sami community, to see the moveable home that has kept members of their community safe for hundreds of years. There's a disused oil silo turned into a circular home; a geodesic aluminium dome; and an epic family home in the mountains. And Will meets leading explorer Borge Ousland.