With 50 people, 75 buildings, and an occasionally dark past, Pitcairn Island's about as isolated as it's possible to get on Earth; more than 5,500 kilometres from New Zealand and just about slap bang in the middle of the South Pacific Ocean. A new show called 'Extremities' finds out what it's like to live in some of earth's most remote and extreme settlements. And Pitcairn- this tiny British Overseas Territory with close ties to New Zealand- is the show's first stop.