High Quality Content by WIKIPEDIA articles! The eighth season of The X-Files commenced airing in the United States on November 5, 2000, concluded on May 20, 2001, and consisted of twenty-one episodes. The X-Files is an American serial science fiction-horror-thriller television series. Season eight took place after Fox Mulder`s alien abduction in the seventh season. The story arc for the search of Mulder continues until the second half of the season, when a new arc about Dana Scully`s pregnancy is formed. This arc would continue, and end, with the next season. The season explores various themes such as life, death, and belief.