"ISIS reigns supreme in huge swathes of Iraq and Syria and poses a threat to stability in the Middle East. When an American airstrike kills the ISIS leader's only son, he vows revenge. He discovers that a U.S. Navy admiral, now on duty in the Pentagon, led the strike. The ISIS leader has him kidnapped by American home-grown ISIS sympathizers. Their orders: smuggle him out of the United States and bring him to Mosul for execution. Op-Center must muster both its domestic strike force, an elite component of the FBI's Critical Incident Response Group Hostage Rescue Team, as well as its international intervention force built around a seasoned squad operating out of the secretive unit that captured Osama bin Laden: the Joint Special Operations Command. As in previous crises, Op-Center's group of twenty- and thirty-something operatives, its "Geek Tank," uses data collation programs, anticipatory intelligence algorithms, and outright hacking to stay one step ahead of a ruthless enemy"-- Provided by publisher.