Great Explorers of the World Here are the stories of nine great adventures and the men who took part in them. They pushed back the frontiers of man's knowledge of the world by their vision, courage and sheer doggedness. Their journeys are placed within their historical context, but also contain the words of the men themselves.
Criminal investigating officer Hanne Wilhelmsen considers the possibility of a serial killer as she tracks down a series of numbers written in blood appearing on walls all over Oslo.