We mostly know the nimble predators from the depths of tropical seas. At the same time, very little is known about cold water sharks. Christina Karliczek wants to change this and goes on an exciting expedition. The underwater camerawoman is one of very few in this domain — having completed special training which allows her to complete dives under ice and into extreme depths. She films sharks with venomous spines, meets the legendary basking shark — the second biggest fish in the world. And even finds sharks that glow!
From the fjords of Norway, she travels to the sunny islands of Sweden, explores the North Sea near Heligoland and Scotland’s Atlantic coastline. Under the sea ice of Greenland, Christina finally meets the ultimate cold shark — the Greenland shark, breaking all temperature and age records among this fascinating family.