The X-Files: Season 4, Episode 19

Synchrony (13 Apr. 1997)
"The X Files" Synchrony (original title)

TV Episode  |  TV-14  |   |  Drama, Mystery, Sci-Fi
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Ratings: 7.8/10 from 1,107 users  
Reviews: 3 user | 3 critic

A mysterious old man is killing scientists working on the development of a cryobiologic compound. He freezes them to death with this same compound that doesn't even exist yet.


(as James Charleston)


(created by), , 1 more credit »
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Title: Synchrony (13 Apr 1997)

Synchrony (13 Apr 1997) on IMDb 7.8/10

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Episode cast overview:
Susan Lee Hoffman ...
Lisa Ianelli
Lucas Menand
Dr. Yonechi
Chuck Lukerman
The Doctor
Norman Armour ...
Patricia Idlette ...
The Desk Clerk
Brent Chapman ...
The Security Cop
Terry Arrowsmith ...
Uniformed Cop
Aurelio Dinunzio ...
Detective (as Aureleo Di Nunzio)


Mulder and Scully investigate a accident that was predicted by an old man who accosted the victim a few minutes before to warn him he would be run over by a bus, which is exactly what happens. The man, a university professor, was with one of his students, Jason Nichols when the accident happened. The old man was taken into custody by the campus police but the arresting officer is found frozen to death and mysteriously, is still getting getting colder. The old man escapes and a visiting Japanese scientist is also found frozen to death. The obvious suspect is Nichols but Mulder begins to suspect that something far more complex is happening. Written by garykmcd

Plot Summary | Add Synopsis





Release Date:

13 April 1997 (USA)  »

Company Credits

Show detailed on  »

Technical Specs

Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


The script took over a week of writing, with sessions of 15 daily hours and the contributions of John Shiban, Frank Spotnitz and Ken Horton. See more »


The compound shown on screen twice in this episode is 1,2 dichloroethane. This compound clearly wouldn't match the NMR spectra that was present with Dr. Yonechi, since it would only have one peak versus the many shown in that spectra. Also, 1,2 dichloroethane clearly does not exhibit any of the properties claimed by the characters in this episode. See more »


Mulder: If Lucas Menand never gets hit by that bus, his complaint gets heard before the grand committee, Jason Nichols loses his funding and he never gets to collaborate on his research with Dr. Yonechi. Therefore, this photograph never gets taken because this celebration never happens.
Scully: ...And if your sister is your aunt and your mother marries your uncle, you'd be your own grandpa!
See more »


References Frosty the Snowman (1969) See more »

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User Reviews

Time traveling is a fascinating subject
4 December 2008 | by (Netherlands) – See all my reviews

I'm not a big fan of scientific episodes, especially because they often try to confuse the audience just to make it seem like it makes sense.

But in this case, this episode is well executed and quite fun. It's something very different from the rest of the show and it's really one of those underrated and misjudged ones.

Although to be quite honest, my favorite parts of the episode are the death sequences. They looked really unpleasant, especially the death of Yonnie whom was first completely frozen just to be awakened by bursting into flames.

Time traveling is a fascinating subject and whether it is possible or not, this episode was a great issue on why it might be better if it's not.

FOUR stars.

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

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