 It marked the first episode in which Fox Mulder loses his belief in extraterrestrial life and the revelation that someone inside the FBI has tried to discredit Mulder and Scully's work on the X-files.When writing the episode, Carter wanted to tie up loose ends from the previous seasons.Despite being the first two episodes of the season aired, they were the second and third episodes produced, the first being "Unusual Suspects", which explained the origins of The Lone Gunmen.