Reaching Panthara IV after an asteroid wreaks havoc of catastrophic proportions, the Enterprise crew deals with trying to save the planet as well as deal with someone who claims to be a historian from the future.



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Episode cast overview:
Berlinghoff Rasmussen
Sheila Franklin ...
Ensign Felton
Shay Garner ...


The Enterprise sets out to help the colonized planet Penthara IV, where an asteroid impacts with an apocalyptic effect, first scorching then lasting clouding comparable to nuclear winter. On the route to it, an unknown vessel appears after a temporal distortion and beams aboard history professor Berlingoff Rasmussen from earth three centuries later (the 26th), who is obsessed by Picard, who accepts the whole crew to be questioned, despite the possibilities of fraud or altering reality. Once at Penthara 4, Geordie down there and Data aboard devise a method to create a greenhouse-effect, at the risk of making it far worse, so Picard wrestles with using Rasmussen's hindsight, but his own history proves significantly problematic... Written by KGF Vissers

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Release Date:

16 November 1991 (USA)  »

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Aspect Ratio:

1.33 : 1
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Did You Know?


Tom Baker of Doctor Who (1963) fame was on the shortlist to play Rasmussen. See more »


The Professor claims to be an historian from the future, and Picard seems to accept this, saying in the crew briefing that the Professor's credentials seem to be in order. It would arguably be rather difficult to verify the credentials of someone from the future, whose 'credentials' don't exist yet. See more »


Rasmussen: That weapon was working yesterday...
[after trying unsuccessfully to use a phaser on Data]
See more »


References Star Trek: Space Seed (1967) See more »


Star Trek: The Next Generation End Credits
Composed by Jerry Goldsmith and Alexander Courage
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User Reviews

22 November 2014 | by (Bradenton, Florida) – See all my reviews

The Enterprise is dealing with a planet undergoing global cooling--a popular theory that was popularized by many of the folks who later popularized global warming. The ship is trying to figure out a way to reverse the cooling--when out of nowhere, a weirdo researcher who identifies himself as coming from the future arrives on the ship. He butters up the crew and tells them that he's here to see THE Enterprise --the one that is such importance to the history of the Federation. The Captain seems to accept this very readily and allows the guy to stay aboard and observe this mission. He also allows the guy to administer questionnaires to the crew and ask them questions. Unfortunately, changing the planet's climate is not easy--and the Captain is worried he'll destroy it in the process. And, unfortunately, this researcher is NOT exactly who he claims to be.

Matt Frewer was a good choice to play the time traveler, as he has had a long history of playing goofy characters---and this one is rather goofy. All in all, the show is inconsequential but also enjoyable-- with a nice ending.

3 of 4 people found this review helpful.  Was this review helpful to you?

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