Things get uncomfortably close between Rachel and Logan Sanders. Also, Harvey and Mike agree to a temporary ceasefire, and Mike learns just how ruthless his new business partner really is.
While investigating a videotape of an alleged alien autopsy, the agents uncover what seems to be tangible proof of the government’s contact with extraterrestrials.
Mulder finds himself trapped on a speeding train with a government assassin, a ticking time bomb and a deadly virus.
To save his dying mother, Mulder must protect the extraterrestrial healer, Jeremiah Smith, from a ruthless alien bounty hunter.
Scully learns new details about her sister's murder as Mulder pursues the shapeless alien entity inside Krycek's body.