Three gunrunners are killed by a new high-tech weapon called "The Vaporizer." And after Horatio interviews the CEO of the defense contractor that made the weapon, he also turns up dead.



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Episode cast overview, first billed only:
Natalia Boa Vista (as Eva La Rue)
Tanya Thorpe
James Reilly
Darren Butler
Steve Lancaster
Gabriel Soto
Patrick Austin
Patrick Wolff ...
Eddie Padura


After noise is heard in a shed at the docks, not corpses are found but a bloody mess and three pair shoes, the shocking mark of the DX-4 alias 'Vaporizer', an experimental, illegal weapon which fires up to 100,000 rounds per minute. DNA from the blood identifies three mashed-up gun runners: Hector Malcas, Eddie Padura and Pedro Rupan. There is also a cigarette with prints from Gabriel Soto. ATF sends Customs official Tanya Thorpe, who confirms there was a secret operation to trick illegal arms sale to the Middle East. However the vaporizer was being produced by Peregrine, which enjoyed special immunity to defend the top-secret project under the Patriot Act. Next its CEO Steve Lancaster is found dead, shot with a Sentry (miniature stun-gun) before a fatal air injection; he has a Navy SEAL tattoo. The only other print is from computer salesman James Reilly, another Navy veteran, who met Lancaster that day and has a virgin criminal record. Lancaster's laptop is wiped clean from the ... Written by KGF Vissers

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Release Date:

10 December 2007 (USA)  »

Filming Locations:

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Technical Specs


Sound Mix:

| (Dolby 5.1)


Aspect Ratio:

1.78 : 1
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Did You Know?


A container ship called "Pine Valley" appears in two cut scenes. Pine Valley is the name of the town on All My Children in which Eva LaRue played a character named Maria. See more »


In the opening scenes, the DX4 "vaporizes" the gunmen. However, the wall showing bullet holes would have been obliterated by the weapon, it is still clearly intact. See more »

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User Reviews

CSI Miami or Star Trek ?
12 December 2007 | by (United States) – See all my reviews

I've been always an avid fan of CSI. I have watched ALL the episodes of CSI, CSI NY and CSI Miami, and I have never seen such a bad episode like the "Guerillas in the Mist". Warning Spoilers ahead: Whoever wrote this episode, invented a weapon called the "Vaporizer" which is shaped in the form of a big cross and that contains about 200 barrels. The back part of the gun/cross is like a big TV Screen to help some extra-terrestrial entity that may have invented the gun to aim it. Turns out that this weapon is used against 3 criminals in the beginning of the episode, making them "vanish" in a mist of flying blood. Only their tennis shoes are left behind. That is needless to say, ridiculous. If you fire the closest existing thing, which in my opinion is a Gatling gun, towards an enemy, he will not vanish in thin air leaving just his shoes behind. It is totally absurd. They should think better and use an existing exotic weapon, like they did in the episode with the "corner shot" weapon, which actually exists and it is fielded by the Israelis. One other thing that bothers me, is that computer room with a big crystal screen. Also looks too much of a Sci-Fi thing – not to mention that the screen is so big, that anyone passing on the corridor of their lab, can see what they are doing – which in real life could really compromise an investigation. I sincerely hope that CSI Miami goes back to the real world and plausible crimes.

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