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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Episode complete credited cast:
Lisa Ianelli
Lucas Menand
Dr. Yonechi
Chuck Lukerman
Norman Armour ...
Patricia Idlette ...
Desk Clerk
Brent Chapman ...
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

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Release Date:

13 April 1997 (USA)  »

Company Credits

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Technical Specs


Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


The molecule shown on the screen is a form of dichloroethane in which the four hydrogen atoms are replaced with helium. Although helium is highly unlikely to form a molecule in this way, the theoretical compound was simply intended to be something that didn't exist and that would be cold and unstable. See more »


Scully uses an electronic ear thermometer to take the temperature of the dead campus security cop, which turns out to be 15 degrees Fahrenheit. However, electronic body thermometers don't register subfreezing temperatures. 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

Back to the Future!
18 September 2006 | by (Roy, Utah) – See all my reviews

If you haven't seen Back to the Future, you should. It's good, harmless fun. Synchrony explores the time traveling concept as well, but doesn't do as well. It has too many plot holes. I bring up Back to the Future because the teaser to Synchrony plays similarly to the mall scene at the end of Back to the Future, with the emphasis on the clock, the bad weather, and someone running to try to save another's life. Nice homage, but the similarities end there. Synchrony is much more dark and serious. Time travel is always an intriguing concept which is why I still like this episode. However, the actress playing Lisa wasn't all the great. Also, the three big inconsistencies are this: the injection freezes others, but it helps boost the old man? And, the old man has the ability to make himself spontaneously combust? Lastly, at 104 degrees body temperature, Dr. Yonechi was convulsing, but Lisa was still and never convulsed at the same body temperature. The episode also never really explained how Jason Nichols time traveled. We just had some vague Mulder theories. Like I said, time traveling is an ever-entertaining concept which made this episode interesting, but it was filled with too many story holes and inconsistencies to make it a really good x-file.

11 of 31 people found this review helpful.  Was this review helpful to you?

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