This episode is filled with twists and turns and you never know exactly where you are or where you're going, but it's one amazing ride. Most of this apisode takes place under the ground although the main characters are unaware that they are undergoing a chemical reation to a giant fungi under the ground. there is also strong emotional occurences
such as the death of mulder and the discovery of an extra-terrestrial, all of which are hallucinations of mulder and scully's. right when you think that you know what is going on, you turn completely in the opposite direction until the very end. it is definatley an episode to watch, and one to enjoy.