Captured by his worst enemies, Locke considers whether to exchange key information for the name of the terrorist who killed his young son years ago. Meanwhile, Scott and Stonebridge follow their last lead--a prominent Budapest businessman with ties to al-Zuhari--in an attempt to track down MacKenna and the weapons intended for an imminent al-Zuhari strike. In an explosive climax, Section 20 finds itself under siege in a shocking location, with top-secret NATO data in danger of falling into terrorist hands, or worse.