"One Day in September" is a documentary film that recounts the tragic events of the 1972 Munich Olympics, where a Palestinian terrorist group called Black September took eleven members of the Israeli Olympic team hostage. The film provides a detailed account of the hostage crisis, showcasing the tense negotiations and the eventual rescue attempt that ended in disaster. The documentary features interviews with survivors, journalists, and officials, offering insights into the political climate of the time. It highlights the impact of the events on international relations and the ongoing conflict between Israel and Palestine, making it a significant historical narrative.