After helping to repair the warp drive on board of a Xyrillian ship, Trip notices a strange bulging on his arm.


(as Mike Vejar)


(based upon "Star Trek" created by), (created by) | 8 more credits »

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Episode cast overview:
Julianne Christie ...
Klingon Captain Vorok
Klingon First Officer
T.L. Kolman ...
Alien Man (as TL Kolman)
John Cragen ...


Enterprise is encountering all different kinds of minor malfunctions. When the crew find out the problem lies with the plasma exhaust, they discover they have a stowaway. The Xyrillians have a problem with their warp drive and by using Enterprise' warp drive they tried to recharge their teraphasic coils. Trip is sent to help fix their engine and meets up with Ah'len, one of their engineers. The two seem to be getting along very well. Trip is able to make repairs, but shortly after the Xyrillians left, he notices a strange bulging on his arm. Written by Arnoud Tiele (

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Release Date:

17 October 2001 (USA)  »

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Did You Know?


Randy Oglesby who plays Captain Trena'L of the Xyrillians, later played Degra from Xindi throughout the Third Season of Star Trek: Enterprise (2001). See more »


[first lines]
[Archer is taking a shower when the gravity suddenly turns off leaving him floating among globules of water]
Captain Jonathan Archer: Archer to the Bridge.
Lieutenant Malcolm Reed: Lieutenant Reed, sir.
Captain Jonathan Archer: What the hell's going on?
Lieutenant Malcolm Reed: We are having a little trouble with the gravity plating on E-deck. I hope it hasn't caused you any inconvenience.
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References Star Trek: The Next Generation (1987) See more »


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User Reviews

Next time, wear a body condom!
19 March 2015 | by (Bradenton, Florida) – See all my reviews

"Unexpected" is the first really good episode of "Star Trek: Enterprise"...something the show really needed after a couple rather weak episodes.

The show begins with the humans discovering a strange cloaked ship hiding in their wake. These aliens were harmless and friendly and Trip agrees to go to their ship to help them repair their warp engines. Here is a neat detail--he could not just beam over or even go directly aboard by shuttle. It seems that the pressure and atmosphere were so different that Trip needed to go through a length 'acclamation' process.

Following this odd process, things seemed to go very well aboard the Xyrillian vessel. Trip particularly enjoyed his time spent with a female engineer. However, what he didn't realize (especially since they never appeared to have sex) is that he became pregnant due to this contact!! This is only discovered later and Enterprise spends several days looking for the Xyrillians trying to figure out what to do with Trip and his 'predicament'!

This episode has TONS going for it. In addition to the cool acclamation process, the show features a great meeting with the Klingons, the BEST dialog from T'Pol you'll ever hear as well as a great sense of humor. Terrific....and an episode you'll never forget!

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