FBI agents Fox Mulder ( David Duchovny ), a believer in the paranormal motivated by his sister's disappearance as a child, and Dana Scully ( Gillian Anderson ), a skeptic, devoted their careers to investigating the unexplained in The X-Files , the longest-running sci-fi series on TV, with over 200 episodes across 11 seasons. Its initial run began on Fox in 1993 and ended in 2002 after nine seasons, followed by a reboot in 2016, as well as a final season in 2018. The series also included two movies. The series was created by Chris Carte r, and a reboot is reportedly in the works from Ryan Coogler .

Most often, the show's season finales—and premieres—followed the series' mythology, with thrilling high-stakes storylines and cliffhanger endings, and all were written at least i

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