AKA: Wait, The Same Plot As The Will Ferrell Movie?
Tone, in The X-Files is a delicate thing, and honestly I'm hard pressed to explain why it works as often as it does. The show, overall, takes itself pretty seriously but it's also working with some kind of inherently silly concepts. And yet the show can be glib, make fun of itself, even be an outright comedy, without necessarily making the darkness feel cheap or easily breached. This is a tightrope walk, tonally, so we can't necessarily blame the series too much if they fall off on occasion.