At the height of the protests following Iran’s controversial presidential election this summer, a young woman named Neda Agha Soltan was shot and killed on the streets of Tehran. Her death — filmed on a cameraphone, then uploaded to the web — quickly became an international outrage, and Agha Soltan became the face of a powerful movement that threatened the hard-line government’s hold on power. With the help of a unique network of correspondents in and out of the country, FRONTLINE investigates the life and death of the woman whose image remains a potent symbol for those who want to keep the reform movement alive.