After the events of The X Files (1998) movie, Mulder and Scully's new boss, K...
The X-Files
Season 6 Episode 4: Dreamland
An anonymous tip finally brings Mulder and Scully to the mecca of all UFO lore, Area 51. But when the agents witness the flight of a mysterious craft there, Mulder and one of the Men in Black, Fletcher, somehow switch bodies - and lives.