Star Trek: Enterprise (2001–2005)
5 user 3 critic
Archer, Reed and Sato are transformed into aliens while visiting a planet.


LeVar Burton


Gene Roddenberry (based upon "Star Trek" created by), Rick Berman (created by) | 2 more credits »

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Episode cast overview:
Scott Bakula ... Captain Jonathan Archer
John Billingsley ... Dr. Phlox
Jolene Blalock ... Sub-Commander T'Pol
Dominic Keating ... Lieutenant Malcolm Reed
Anthony Montgomery ... Ensign Travis Mayweather
Linda Park ... Ensign Hoshi Sato
Connor Trinneer ... Commander Charles 'Trip' Tucker III
Roger Cross ... Tret
Daniel Dae Kim ... Corporal Chang
Troy Mittleider ... Palmer
Philip Boyd ... Com Officer
Brian J. Williams ... Alien Decon Agent


Archer, T'Pol, Sato and Reed land on a planet to investigate a Xindi landing craft, seemingly abandoned two weeks ago, and are infected with a virus that changes their DNA and urges them to return to their capital city. A ship of exterminators seeks to kill the infected crew to prevent an outbreak. Written by Meribor

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TV-PG | See all certifications »


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Release Date:

24 September 2003 (USA) See more »

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Did You Know?


This is the episode where the series' title change from Enterprise to Star Trek: Enterprise in the opening credits. See more »


When Trip tries to persuade T'Pol to come back to Enterprise with him, she refuses, saying she'd rather stay with Archer and Hoshi, but T'Pol is completely out of contact with Enterprise while she follows her two crewmates. Why doesn't she take a communicator and phaser from Trip so that she's at least able to communicate with Enterprise and defend herself? See more »


Tret: Your ship is in restricted space.
Commander Charles 'Trip' Tucker III: Sorry. It wasn't very well marked.
See more »


Where My Heart Will Take Me
Written by Diane Warren
Performed by Russell Watson
Episode: {all episodes}
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User Reviews

The Mysterious Virus
1 February 2008 | by claudio_carvalhoSee all my reviews

While investigating an abandoned Xindi ship on the surface of a planet in the Delphic Expanse, Archer, Reed, Sato and T'Pol are infected with a virus and are transformed in aliens. T'Pol keeps her memory and language, and using the translator, she understands that their mates are seeking the city Urquat. Meanwhile, the Enterprise is under siege of two alien ships with teams of exterminators that want to "neutralize" the infected crew to prevent an outbreak of the virus while Phlox researches the cure using the DNA of T'Pol.

In "Extinction", there is a break in the non-stop action of the other three episodes and Archer, Reed, Sato are transformed in obsessive aliens by a mysterious laboratory virus that changes the DNA of other races to the one that is near extinction without capability of breeding, while the Vulcan T'Pol is only partially transformed. I did not find anything special in this episode. My vote is seven.

Title (Brazil): "Extinção" ("Extinction")

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