In the great depths surrounding the remote Lofoten islands in Norway lives the Greenland shark. 26 feet in length and weighing more than a tonne, it can live for 200 years. Its fluorescent green, parasite-covered eyes are said to hypnotise its prey, and its meat is so riddled with poison that, when consumed, it sends people into a hallucinatory trance. Armed with little more than their wits and a tiny rubber boat, Morten Strøksnes and his friend Hugo set out in pursuit of this enigmatic creature.