The film is adapted from a true story. It tells the true events in the history of the Black Panther Party, an African-American community in the United States in the 1960s. The story focuses on the death of Hampton, who was killed in 1969 in a raid organized by the Chicago Police Department and the FBI. The police fired 80 shots, while the members of the Black Panther Party only fired one shot in total, which was a muscle contraction after a member was shot to death by the police. Hampton was shot in the head at close range while sleeping with his pregnant fiancée. He was drugged that night and did not hear any movement from the police. After his death, his body was dragged into the alley. He was only 21 years old. After the trial, his death was judged as "justifiable homicide". Later, in 1982, an out-of-court settlement of the civil lawsuit was reached with a compensation amount of 1.85 million US dollars.