Dennis and Karen have long dreamed of living in the wilderness and in 2013 they finally bought their perfect bush block in Clarence, a tiny pocket of the spectacular Blue Mountains, west of Sydney. But beauty comes at a price... bushfires are an ongoing threat and designing a house to withstand them is a challenge. For Dennis, an engineer, the answer is obvious - a house made of steel. He sets about refurbishing seven giant shipping containers into his and Karen's new home.