"The Truth" is the two-part season finale of the ninth season of the American science fiction television series The X-Files. "The Truth", the 19th and 20th episodes of the season and the 201st and 202nd episodes overall, originally served as the series finale for the series until The X-Files was revived in January 2016. First aired together on the Fox network on May 19, 2002, the episodes were written by series creator Chris Carter and directed by Kim Manners. "The Truth" was the most-watched episode of the ninth season and was seen by 13.25 million viewers upon its initial broadcast. The finale received mixed reviews, with many commentators criticizing the episode's lack of closure. Others were pleased with the full return of actor David Duchovny to the series, as well as the episode's conclusion.

"Existence" is the twenty-first episode and final episode of the eighth-season of the science fiction television series The X-Files and 182nd episode overall. The episode first premiered on Fox in the United States on May 20, 2001, and subsequently aired in the United Kingdom on June 28, 2001, on Sky1. It was written by executive producer Chris Carter and directed by Kim Manners. "Existence" earned a Nielsen household rating of 8.4 and was watched by 8.58 million households and 14 million viewers, overall. The episode received largely positive reviews from television critics.