The X-Files: 6x15
Arcadia
On their first official case back on the X-Files, Mulder and Scully go undercover as a married couple at a prestigious planned community where several residents have recently disappeared after failing to comply with the rules and regulations.
6 - 1The Beginning Nov. 08, 1998
6 - 2Drive Nov. 15, 1998
6 - 3Triangle Nov. 22, 1998
6 - 4Dreamland (1) Nov. 29, 1998
6 - 5Dreamland II (2) Dec. 06, 1998
6 - 6How the Ghosts Stole Christmas Dec. 13, 1998
6 - 8The Rain King Jan. 10, 1999
6 - 9S.R. 819 Jan. 17, 1999
6 - 10Tithonus Jan. 24, 1999
6 - 11Two Fathers (1) Feb. 07, 1999
6 - 12One Son (2) Feb. 14, 1999
6 - 13Agua Mala Feb. 21, 1999
6 - 14Monday Feb. 28, 1999
6 - 15Arcadia Mar. 07, 1999
6 - 16Alpha Mar. 28, 1999
6 - 17Trevor Apr. 11, 1999
6 - 18Milagro Apr. 18, 1999
6 - 19The Unnatural Apr. 25, 1999
6 - 20Three of a Kind May. 02, 1999
6 - 21Field Trip May. 09, 1999
6 - 22Biogenesis (1) May. 16, 1999