BBC weatherman Peter Gibbs makes an emotional return to the British Antarctic Survey's Halley Research Station, where he lived and worked in the early 1980s. During that period, the station was key to the discovery of the Ozone Hole, and today it is making vital findings about how people's lives are vulnerable to the Sun's activities, as well as studying interplanetary travel and the threat of man-man climate change. In addition to returning to the place he once called home, Peter is on a rescue mission, since the station is under threat of being cast adrift on a huge iceberg.