After finding a type of dilithium which can survive at a higher temperatures, Tom Paris comes up with the ingenious idea of attempting to cross the transwarp threshold in an attempt to find... See full summary »



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Episode cast overview:
Lieutenant B'Elanna Torres (as Roxann Biggs-Dawson)


After finding a type of dilithium which can survive at a higher temperatures, Tom Paris comes up with the ingenious idea of attempting to cross the transwarp threshold in an attempt to find a way to get home faster. After a bumpy start and the help of Torres and Kim, they succeed in a holodeck simulation. When it is presented to Captain Janeway, she is impressed and gives them the go ahead to try it, but traveling faster than warp 10 has never before been attempted. The first run goes very well. Tom Paris manages to cross the warp threshold which means that the shuttle craft in which he is traveling exists simultaneously everywhere. But Tom then disappears and Harry is unable to find him anywhere within five parsecs. Tom somehow manages to return to Voyager through subspace, but there are unforeseen side-effects of his transwarp travel and Tom begins to mutate. The doctor tries to treat him with a type of radiation that will prohibit cell mutation, however this fails and Tom dies. To ... Written by Leila Reid (edited by Jeff L.)

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24th century | See All (1) »




Release Date:

29 January 1996 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


André Bormanis believed the first part of the episode, involving Paris breaking the warp 10 barrier, had similarities to a certain historical event. "It was a little bit of an analogue to breaking the sound barrier," Bormanis commented, "the famous story about Chuck Yeager and the X-1 in 1947, finally breaking the sound barrier." See more »


In "Threshold", Tom and Harry are trying to break the Warp 10 barrier. In the process they say its a theoretical impossibility and that no one has gone that fast. At least once in Star Trek and Star Trek: The Next Generation the warp 10 barrier is apparently broken, but this is either due to a reclassification of the warp speed system or means something else. At no point in any other episode did any starship travel at 'infinite velocity': The ships just traveled faster than they would usually be expected to under normal circumstances. See more »


[Paris has come back from the dead]
Tom Paris: Wha... what's happening?
The Doctor: All of your internal organs are functioning again. In fact... you seem to have an extra one.
Tom Paris: Wha...?
The Doctor: You have... two hearts.
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Referenced in Zero Charisma (2013) See more »


Star Trek: Voyager - Main Title
Written by Jerry Goldsmith
Performed by Jay Chattaway
See more »

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User Reviews

Can this be as horrible as I just read?!
14 February 2015 | by (Bradenton, Florida) – See all my reviews

According to IMDb, this is among the most hated episodes of the series. And, when I read through the six reviews for the show, one was lukewarm and the other five totally hated it. So is this really that bad? After all, there have been so many horrible episodes of the various Star Trek shows! Mind you, I love the shows but I also am honest enough with myself to admit that on rare occasions the Trek shows and films let down the viewers. I am a fan but I am NOT a fanatic!

When the show begins, Paris and a few other crew members are working on trying to achieve warp 10. We are told that in theory this would allow for instantaneous travel ANYWHERE...but is it possible? Well, eventually they are ready to test this outside the holodeck and Paris insists that he be allowed to pilot the shuttle on the attempt. At first, it seems to work...but of course it cannot work perfectly, otherwise the series would come to an end and they'd all be home in the middle of the second season!

What follows reminds me a lot of the remake of "The Fly" but with a lot less coherence. It also wasn't bad...that is until the end. Then, it became completely bat$&#* well as stupid! You really have to see this one to believe it...but I can see much of why folks disliked this was kooky indeed! But is it the worst? I don't think so, as the final episode of the original series featured Kirk getting a sex change and suffering a HUGE menopausal mood shift, a terrible "Star Trek: Deep Space 9" episode involving a baseball game in the holodeck and much of season one and two of "Star Trek: Voyager" at least give it a run for the money as worst episode!

2 of 7 people found this review helpful.  Was this review helpful to you?

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