Wilds of the Wolf by Steve Backshall

Saker and Sinter escape by the skin of their teeth when their plan to sabotage a billionaire businessman plundering ‘black gold’ (natural oil and gas) and hunting wolves in the remote Yamal peninsula in North West Siberia goes disastrously wrong. But they escape one kind of peril only to find themselves in an even more terrifying situation. Separated by blizzards and avalanches, lost in a breathtakingly beautiful but deadly frozen Arctic wilderness, suffering from frostbite and hunger, listening to the wolves howl and the packs draw closer, it seems that this time they cannot possibly live to tell their tale.