Alex Rider (Alex Pettyfer) is a normal teenager who lives with his uncle, a nondescript bank manager… or so it seems until his uncle—Ian Rider (Ewan McGregor)—disappears under mysterious circumstances. Alex soon learns that his uncle was a spy for Britain's secret intelligence service MI6, and he is recruited to take on a dangerous mission for the British secret service to infiltrate the organization of a sinister billionaire (Mickey Rourke). Within days he's gone from schoolboy to super spy—but will Alex's first assignment be his last?