The X-Files: Season 3, Episode 10

731 (1 Dec. 1995)
"The X Files" 731 (original title)

TV Episode  -   -  Drama | Mystery | Sci-Fi
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Ratings: 8.8/10 from 1,211 users  
Reviews: 4 user | 4 critic

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



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Title: 731 (01 Dec 1995)

731 (01 Dec 1995) on IMDb 8.8/10

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Episode cast overview:
Michael Puttonen ...
Don S. Williams ...
Elder #1


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

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Release Date:

1 December 1995 (USA)  »

Company Credits

Show detailed on  »

Technical Specs

Sound Mix:


Aspect Ratio:

1.33 : 1
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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 »


In chapter 12 (at around 23 mins) the camera view changes to that from the television set. For no logical reason, this shot is flipped left to right compared to the reality the viewer has just been shown. See more »


Scully: Don't you see Mulder, you're doing their work for them. You're chasing aliens that aren't there, helping them to create the story that covers the shameful truth. And what they can't cover they apologize for. Apology has become policy.
Mulder: Maybe. Maybe you're right, Scully. But I don't need an apology for the lies. I don't care about the fictions they create to cover their crimes. I want them held accountable for what did happen. I want them to apologize for the truth.
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 »

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User Reviews

"Keep it up yourself." What a doof.
30 October 2007 | by (Sandy, UT, United States) – See all my reviews

731 the Limerick:

Mulder gets locked in a cart

With one who in the cover-up takes part

He gets the door code

Before the cart will explode

Then X saves Mulder from being blown apart

The second episode in the two parter with Nisei being the first. I don't quite understand the title and I'm not sure if its explained in the episode but I know that I missed it if it is. We rejoin our friend Mulder just after he has jumped onto a moving train and for some reason decided to do so with his cell phone in his hand and so he loses it off the side. I like this episode because of the suspense of being stuck on the train car with a bomb with the NSA guy. It gives the episode a kind of "The Phone Booth" feel to it. I also love X in this episode as I do in pretty much every episode. But I love first of all how quickly and easily he slaps the pistol out of Scully's hand at the beginning. C'mon Scully you do NOT mess with X. Then of course he saves Mulder from being blown to bits at the end. And of course there are the important mythology facts that become known to us. Such as the "aliens" being results of human experimenting and they are just deformed lepers. The tests on abductees taking place on these train carts. I think this is the only time the First Elder of the syndicate makes contact with either Mulder or Scully but we are glad he does because it helps Mulder to believe that there is a bomb actually on the train and saves him from blowing himself to bits. I also really like the teaser with the execution of all the mutant alien human leper things. Very graphic. Oh yeah and don't forget this is another good one for all you Pendrell fans. Anyway all in all 9/10.

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