"Requiem" is the seventh episode in the fifth season, and the 101st overall episode, of the American crime drama television series NCIS. It first aired on CBS in the United States on November 6, 2007. The episode was written by Shane Brennan and directed by . "Requiem" was originally intended to be the 100th episode of the series, until the producers switched the order with "Chimera" because they believed it would be suitable to air near Halloween. The episode was seen by 18.15 million viewers, which was the second largest audience at the time.