During a softball game at an American oil company housing compound in Riyadh, Saudi Arabia, al-Qaeda terrorists set off a bomb, killing Americans and Saudis. While one team hijacks a car and shoots residents, a suicide bomber wearing a fake police uniform blows himself up, killing everyone near him. Sergeant Haytham of the Saudi State Police kills the carjackers. The FBI Legal Attach� in Saudi Arabia, Special Agent Fran Manner, calls his US colleague, Special Agent Ronald Fleury, to advise him about the attack. Manner is discussing the situation with DSS Special Agent Rex Bura when an ambulance full of explosives is detonated, killing Manner, Bura, and many others.
At FBI Headquarters in Washington, D.C., Fleury briefs his rapid deployment team on the attack. Although the U.S. Justice Department and the U.S. State Department hinder FBI efforts to investigate the attack, Fleury blackmails the Saudi ambassador into allowing an FBI investigative team into Saudi Arabia. Fleury gathers Special Agent Janet Mayes, a forensic examiner, FBI analyst Adam Leavitt, an intelligence analyst, and Special Agent Grant Sykes, a bomb technician, to go to Saudi Arabia. On arrival they are met by Colonel Faris al-Ghazi, the commander of the Saudi State Police Force providing security at the compound. The investigation is being run by General Al Abdulmalik of the SANG, who does not give Fleury and his team permission to investigate.
The FBI team is invited to the palace of Saudi Prince Ahmed bin Khaled for a dinner. While at the palace, Fleury persuades the Prince that Colonel al-Ghazi is a natural detective and should be allowed to lead the investigation. With this change in leadership, the Americans are allowed hands-on access to the crime scene. While searching for evidence, Sergeant Haytham and Sykes discover the second bomb was detonated in an ambulance. Fleury learns the brother of one of the dead terrorists had access to ambulances and police uniforms. Colonel al-Ghazi orders a special forces team to raid a house, managing to kill a few heavily armed terrorists. Following the raid, the team discovers clues, including photos of the U.S. and other Western embassies in Riyadh. Soon afterward, the U.S. Embassy Deputy Chief of Mission Damon Schmidt notifies Fleury and his team that they have been ordered to return to the United States.
