: A mysterious man is chased from the Canada/US border and is reportedly burned alive, though his body is never recovered. In the wreckage, the FBI finds evidence that sets a dangerous plot in motion.

This episode is a critical "myth-arc" installment that picks up the intensity of the season's overarching conspiracy.

: The cult believes the ship holds divine secrets, but their true mission is far more sinister. They believe Scully’s son, William, is the key to activating the craft and a prophecy that could lead to human extinction.