Siberius

''It's 1948, World War II has ended, and the Cold War is about to begin. Chased by the relentless Soviet Red Army, American operative Nicholas Somerset forges an unlikely alliance with Russian biologist Talia Markovitch as they run for their lives across hostile Siberia. But in the deepest reaches of the snowy taiga, the endless forest bordering the Arctic, another, ancient war thought ended with the receding Ice Age glaciers has been rekindled. And in this war, Nick and Talia will be unwitting soldiers fighting a primordial enemy more savage and powerful than any human army.''