Mulder becomes trapped aboard a train rigged with an explosive device. Scully searches for the truth behind the government's secret experiments.



(created by),

Watch Now

From $0.99 (HD) on Amazon Video






Episode complete credited cast:
Don S. Williams ...


Now aboard the mysterious train, Mulder locates the car containing the scientific equipment and what appears to be the autopsy room he saw in the video he purchased. There is also an assassin on board who claims to work for the NSA. When they are locked in, he reveals that there is a bomb aboard which is set to go off and destroy any evidence on the train. Scully meanwhile traces her implant to a medical research facility in West Virginia which she feels provides a logical explanation for what has been happening - rogue medical research by a Japanese scientist working without authority. Mulder remains convinced the work was to create a human-alien hybrid. Written by garykmcd

Plot Summary | Add Synopsis





Release Date:

1 December 1995 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
See  »

Did You Know?


"731" refers to Unit 731, a real Japanese chemical and biological army unit that performed horrific experiments on Chinese civilians during World War II, which forms a central aspect of the plot. See more »


Mulders pistol switches between having sights, and lacking them. In the first scene after Mulder and the Red-Haired Man have been locked in the train car, Mulder's Smith & Wesson 5906 pistol has iron sights. Next time we see them, it has none. Next time after that, it has sights again. See more »


Scully: What is this place?
Elder #1: This was one of the most frightening places on the earth. A place where society sent its monsters to live in shame and isolation. Now, their disease is all but conquered. Science has eliminated thousands of years of misery.
Scully: I've seen your methods of "elimination." What happened to the man who was with me in the forest? What about the people who were in this room?"
Elder #1: They had been exposed.
Scully: Exposed to what?
Elder #1: The same thing all these victims have been exposed to... victims of an ...
See more »

Crazy Credits

The tagline reads "Apology is Policy." See more »


Featured in El comisario: Secreto a voces (2005) See more »


On a Train
Written by Mark Snow
Performed by Mark Snow
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Adds so much more to the story
2 September 2008 | by (Netherlands) – See all my reviews

One of the best, most gripping and story developing Mythology episodes yet.

It carries on what happened in the first part, but adds so much more to the story. Scully's part in this episode involved a camp very similar to the Hitler camps of WW2 where people with leprosy and alien-hybrids were held and executed. The most disturbing part of the episode was that big death hole full of alien bodies. The reason why it disturbed me was because it looked pretty real. Scully's story is also developed as she believes to have been abducted by the crazy Asian doc.

Mulder's part in this episode was very tensed and action-packed as he gets locked in with a killer that almost strangled him. Although it is obvious that they weren't gonna kill him, you can't help but to feel nervous and hoping that he will get out alive. I really like the way X was used in this episode, as he comes to save Mulder's butt at the end of the episode.

There's a very cool explosion and some great character bits. FIVE stars for this excellent Mythology episode.

5 of 8 people found this review helpful.  Was this review helpful to you?

Message Boards

Recent Posts
Season 7 the best season? Agent_Mulder89
Duchovny doesn't have anything on Robert Patrick mlu08
Lone Gunmen Tank_Girl24
The Event Series: Loved it! preholidaypampering
So what happened to the episode discussions now?? VanillaLimeCoke
Episode 10x7 spooky_hh
Discuss 731 (1995) on the IMDb message boards »

Contribute to This Page

Create a character page for: