The sole survivor of an Arctic reconnaissance mission that went disastrously wrong stumbles into a remote outpost in one of the most inhospitable places on Earth. Half-frozen and barely alive, she is Anja Forsberg, an elite Swedish sharpshooter.

Blamed for the disaster, she is suspended, demoted, and leaves the military in disgrace.

One year later, a high-ranking Russian intelligence officer offers the West a treasure trove of secrets. Her price for defecting: Forsberg must come and get her.

Joined by a British SIS agent and a Norwegian officer, Anja returns to the place of her nightmares, where the sinister forces that massacred her team are waiting.

But the extraction is only the opening move in a far more dangerous game. Assassins are closing in. Loyalties are shifting. And somewhere within the highest levels of Western intelligence, a traitor is engineering a conspiracy that could shatter NATO and change the balance of power in Europe.

The Arctic Fox survived once. This time, someone intends to finish the job.