Mack Bolan's soft probe into Soviet arms dealing soon exposes a much more sinister scheme. An elite force of Russian commandos has taken up secret residence in Scotland, bringing murder and intrigue to the quiet countryside. In the ruins of a Highland castle, Bolan uncovers the lethal nest of Spetsnaz vipers, poised to strike at the heart of the British government. But not only is Britain's security at risk - NATO's darkest secrets are about to be revealed. The Executioner has faced the Russians many times and walked away. But this time he's up against a killer squad. He's ready.