At a 15th Century castle outside Edinburgh, Scotland, Sir Geoffrey Cornwell is brokering an unprecedented agreement. Prince Abdullah of Saudi Arabia and the Israeli Foreign Minister are scheduled to sign an historic peace treaty—that is, until their meeting is violently interrupted by a missile strike that leaves the Foreign Minister of Israel dead and Cornwell and the Prince injured. Gunnery Sergeant Kyle Swanson is running covert missions in the mountains of Pakistan when he’s called away from duty. He leaves for the U.K., where he thwarts another attempt on the prince of Saudi Arabia’s life. The attackers are Middle Eastern, but they aren’t working for Al Qaeda—they’re employed by foreign operatives opposed to the peace agreement and determined to claim Saudi oil reserves for themselves by whatever means necessary. Meanwhile, out of hiding and back from the dead comes Juba, one of the deadliest terrorists in the world and Kyle Swanson’s nemesis, who is determined to exact revenge on the man who nearly took his life.