"Gethsemane" is the twenty-fourth and final episode of the fourth season of the American science fiction television series The X-Files. It premiered on the Fox network on May 18, 1997. It was directed by R.W. Goodwin, and written by series creator Chris Carter. "Gethsemane" featured guest appearances by Charles Cioffi, Sheila Larken and Pat Skipper, and introduced John Finn as recurring character Michael Kritschgau. The episode helped to explore the overarching mythology, or fictional history of The X-Files. "Gethsemane" earned a Nielsen household rating of 13.2, being watched by 19.85 million people in its initial broadcast.