Scorpia Rising

Zeljan Kurst, chief executive of the criminal organization Scorpia, is asked by Yannis Ariston Xenopolos, a Greek billionaire suffering from terminal cancer, to return the Elgin Marbles to Greece. A tip-off leads MI6 to organise an operation to try to capture him at the British Museum, but Kurst escapes amidst an intense firefight between the SAS personnel and his own security detail. Scorpia's executive board meets up on a riverboat in Paris, where Razim, who is selected to be in charge of returning the Elgin Marbles back to Greece, discusses his plan involving Alex Rider (an old enemy of Scorpia's). Despite many members of the executive board expressing general amusement with Razim's plan, Levi Kroll hotly protests and threatens to kill Zeljan Kurst if Scorpia does not let him leave. Kroll is shot by a sniper Kurst set up (for this exact purpose) and Kurst then makes use of his body as part of Razim's plan. Meanwhile, Scorpia then manages to help Julius Grief (a clone of Dr. Hugo Grief, but who had plastic surgery done to look exactly like Alex Rider) escape from a top-secret prison in Gibraltar, while at the same time faking his death. Scorpia begins its operation by arranging for Levi Kroll's body to be found in the River Thames. Using evidence stored in Kroll’s body, MI6 suspects an upcoming attack by Scorpia at the Cairo International College of Arts and Education (CICAE) in Cairo, Egypt. Alan Blunt, head of MI6, plans to recruit Alex on the mission, which his deputy, Mrs. Jones, refuses. At Alex Rider's school, Alex is attacked by a sniper in Mathematics class. Tracking down the sniper, he causes the helicopter, which the sniper is escaping in, to crash into the Thames. Later that evening, Alan Blunt and Mrs. Jones visit Alex in his house and suggest that, because of the attack, they should arrange for Alex to go to Cairo and investigate the CICAE and Erik Gunter, the school's new head of security, as a student. Jack Starbright, Alex's guardian, demands to come with him to keep an eye on him, to which MI6 reluctantly agrees. Smithers, the gadget master, was also sent to aid Alex in his mission.

Alex's investigation of Gunter leads him to the House of Gold, a floating armaments workshop. There, Gunter commissions the purchase of a sniper rifle and kills the salesperson known as Habib. Gunter then blows up the House of Gold, causing Alex to be swept into the Nile River. Alex is then captured by an unknown organization (later turning out to be the CIA), who waterboards him for information at their headquarters. The head of the CIA Joe Byrne dismisses CIA operative Blake Lewinsky and the interrogators and explains the CIA are to protect the American Secretary of State in Cairo, who is due to give a speech denouncing Britain's status as a world power. Alex tells Byrne about Gunter's involvement in Habib's murder, and Byrne agrees to keep an eye on Gunter. Thus, Alex and Jack decide to return to England, presuming that the CIA can handle the mission, and visits Smithers' house to inform him about his decision. However, Scorpia operatives assault Smithers' house, and he and Smithers barely manage to escape. Smithers reveals after the assault that he has actually worn a fat suit since Alex first met him, which he removes to escape the attempt on his life.

Returning home, Alex finds that Jack has been kidnapped by Scorpia, and is instructed to go to a cemetery called the City of the Dead, where he is confronted by Julius and Gunter. Alex is taken to Razim's fort, where he reunites with Jack and spends a day within the fort heavily supervised. Jack reveals she has an escape plan and plans to break out that night. That night, Alex is taken to Razim's laboratory, where Razim reveals that he anticipated her escape and Julius kills Jack despite Alex's protests. Overwhelmed with grief, Alex passes out. The following night, Alex is taken back to Cairo. While waiting in a van, Gunter reveals Scorpia's plan to Alex. Scorpia has been compiling fabricated evidence alleging that MI6 used a teenage boy to kill the American Secretary of State, and plans to threaten the British government with the file which will frame Alex and destroy the reputation of the British government, forcing them to return the Elgin Marbles to Greece. However, Alex later manages to overpower and kill Gunter after Gunter is stung by a scorpion. He seizes the pistol and pursues Julius. He manages to stop Julius's attempt to shoot the American Secretary of State and Julius tries to flee. Julius is injured in the chase and gloats that Alex will never kill him, before attempting to shoot him, forcing Alex to return fire in self-defense, killing Julius. Alex then returns to the CIA, who forms a joint task force with the Egyptian secret service to take out Razim in the desert, taking Alex with them to help. When he arrives at Razim's fort, Alex, masquerading as Julius, manages to deactivate the fort's defense system before the CIA and the Egyptians attack the fort. Alex confronts Razim on a bridge, and Razim tries to shoot him, but a CIA member, Blake destroys the bridge, causing Razim to fall into a pile of salt underneath. Razim dies as he gets sucked into the salt and suffocates, and the task force manages to overpower Razim's men.

In the aftermath, the remaining Scorpia members are arrested or executed, including Kurst, causing Scorpia to disband as their reputation is destroyed. Back in England, Blunt retires and leaves his job to Mrs. Jones, who reveals that she knows Blunt ordered the sniper to fire at Alex's school. Due to the killing of Julius, Razim's gruesome death, and the killing of Jack leaving him broken, Mrs. Jones vows never to use Alex as an agent ever again. Meanwhile, Alex, now the ward of Sabina Pleasure's father Edward, is preparing to leave for America, where he may go on to lead a normal life.