Robert Long and his family - wife Catherine, and children Christan (17) and Robin (14) - live in complete isolation, in a hut two days' walk south of Haast in South Westland. Robert has lived there for nearly 30 years; Catherine for 20 and the kids all their lives. Their only contact with the outside world is a helicopter or plane once a month, and two trips a year to the 'outside world'. This is the story of how and why Robert - known locally as...