Beautiful, bold Lt. Ligachev was two months into her first command position in the Siberian oil fields when her men were slaughtered by an invisible foe. Detective Schaefer has played the Predators' deadly games on the mean streets of New York. Now Ligachev and Schaefer are sent by their governments to winter-ravaged Siberia to eliminate the Predators - if they can keep the Americans and Russians from killing each other first.