Mulder and Scully uncover a chilling link between a UFO cover-up and secret government experiments.
Trying to find a way home, Peter confronts Walternate on the Other Side – a which proves more dangerous than expected. Meanwhile, Olivia receives a dire warning from an Observer.
Not wanting to hurt his mother, Vinnie tries to resist an OCB investigation of his new stepfather while his relationship with Amber Twine grows ever closer.
While on the trail of an arsonist, the commish notices that all the clues point to the wife's father.
Blacksmith Aaron Fremont advertises for a Mail Order Bride to end his loneliness. She arrives with her son and a hidden past. Aaron's situation becomes increasingly complex when a dark object from his past also appears The Dead Man's Gun.
