The guys in the Regiment know they face their fiercest enemies when theyfight the Taliban. No-one is tougher, more deadly - or more cunning. And ifthey enter the Taliban's kill zone, they know just what to expect...Whenthree deadly Stinger missiles go missing in Helmand Province, the Regimentis tasked to retrieve the weapons at all costs. SAS legend Jack Harker hasto lead an eight-man mission into a suspected Taliban facility. He'ssuspicious about what the aims of the mission really are - and it's aboutto go noisy. Meanwhile, in Belfast, Siobhan Byrne, a highly trainedsurveillance operative, is infiltrating the drug crew of a former IRAcommander. But are her motives professional or personal? Even she doesn'tknow any more. Neither Jack nor Siobhan can guess just how closely linkedtheir operations are about to become, or just what's at stake. But as thePresident of the United States makes plans to visit the UK, a devastatingplot unfolds.