On the wedding anniversary, CIA agent Evelyn Sauter (Angelina Jolie) was ordered to interrogate a Russian spy who surrendered himself. The other party claimed to have sneaked into the United States since the 1980s, and revealed that a spy master had trained several children, trained them as spies and sent them to ordinary American families, waiting for an opportunity to assassinate the President of the United States. To the shock of all the agents present, the Russian actually identified Sauter as one of these children. Despite the obstruction of the CIA agents, Sauter insisted on returning home. After a thrilling chase, she temporarily escaped the pursuit of her former companions. Soon, the Russian president visited the United States, and Sauter was once again involved in various conspiracies, and her true identity became more and more confusing...