A weapon of mass destruction. A rising terrorist threat. One agent to stop them all. While Theo Florakis remains elusive, Aaron Holt is tasked with a new mission. A newly formed Irish extremist cell has vanished underground—taking with them enough firepower to level city blocks and ignite political chaos. With no trail, no leads, and zero room for error, Holt is thrust into a deadly hunt through the shadows of Europe. His mission: locate the group, dismantle their operation, and neutralize the threat—before the first bomb goes off.