Having stopped two of the six evil Oginski brothers, Dakkar now faces double danger from the Oginski twins - possibly the most cunning and devious of the brothers yet. Set in the icy wastes of Greenland, Dakkar must battle giant bears, vicious arctic sharks and a sabretooth tiger as he hunts for the fabled Thermolith, a source of great heat energy which the Oginskis also seek, in order to complete their preparations for a new world order with themselves at the helm.