The film is based on the true events of the student protests at Kent State University in Ohio, where four students lost their lives when the National Guard intervened to contain the riots sparked by President Nixon's announcement that American troops would bomb Cambodia.
Kent State
The film recounts the tragic events of May 4, 1970, when four students were killed during a National Guard clash with protesters at Kent State University in Ohio, sparked by President Nixon's announcement of the US invasion of Cambodia.