"Millennium" is the fourth episode of the seventh season of the science fiction television series The X-Files. It premiered on the Fox network in the United States on November 28, 1999. It was written by Vince Gilligan and Frank Spotnitz and directed by Thomas J. Wright. The episode is a "Monster-of-the-Week" story, unconnected to the series' wider mythology. "Millennium" earned a Nielsen household rating of 9.1, and was watched by 15.09 million people in its initial broadcast. The episode received mixed reviews from television critics; some felt that the episode's plot was creepy and engaging, while others felt that it was not a decent conclusion for the Millennium television series.