Lost in Space: Season 1, Episode 2

The Derelict (22 Sep. 1965)

TV Episode  -   -  Adventure | Comedy | Family
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Ratings: 7.2/10 from 78 users  
Reviews: 5 user | 1 critic

The Jupiter 2 is pulled into a giant ship occupied by bubble like creatures.


(as Alex Singer)


(teleplay), (story), 1 more credit »
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Title: The Derelict (22 Sep 1965)

The Derelict (22 Sep 1965) on IMDb 7.2/10

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Episode cast overview:
Will Robinson (as Billy Mumy)


Heat from an approaching comet nearly spells doom for Maureen and John who are stuck outside the ship after a rescue and repair operation. Afterwards, Will and Dr. Smith make a first-contact encounter with aliens when a gigantic and seemingly derelict spaceship pulls the Jupiter 2 inside itself. Written by statmanjeff

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Release Date:

22 September 1965 (USA)  »

Company Credits

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Technical Specs


Sound Mix:

(RCA Sound Recording)

Aspect Ratio:

1.33 : 1
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Did You Know?


Umbra is the darkest part of a shadow. See more »


When Maureen Robinson is trying to get John back to the ship, she is pulling on the tether hand over hand with no apparent effort. While it is true that objects in free fall in space have no weight, they still have their full mass, and require just as much energy to move as they do in a gravity environment. Maureen would have had to pull with some effort while brace herself so as not to have John's momentum pull her away from the ship. See more »


Narrator: [epilogue] Even as we watch, the spaceship Jupiter II is drawn deeper and deeper into the gravitational pull of the unknown planet. Whether it's alien environment will be friendly or hostile, whether this will be the beginning of a new adventure for the Robinson family or the end of everything, only time will tell...
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Featured in Lost in Space: The Prisoners of Space (1966) See more »

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User Reviews

fine music and visuals
10 October 2008 | by (New York City) – See all my reviews

Many like to cite (justifiably so) the music of John Williams (principly from episodes one, three, and seven) as one of the great assets of "Lost in Space," but episode two, "The Derelict," boasts a fine score from the often overlooked Herman Stein. No stock music here; he wrote this beautiful programme music particularly for this episode, and it considerably heightens the dramatic qualities of many scenes, along with much of the almost 'noir' lighting. One can tell that Stein was well acquainted with the dissonance of Stravinsky, Bartok and the like, and put his knowledge of classical composition and orchestration to good use.

Many of the scenes are almost like a silent movie: music and visuals with little or no dialog characterise long stretches in the narrative, and with fine results. The acting is average but adequate, with the exception of Jonathan Harris whose sinister portrayal of Dr. Smith (not at all the camp incarnation that would later become world famous) is a marvel to behold. His modulation of voice and expression makes him by far the most compelling character in these early episodes. The second half of "The Derelict" is unquestionably an early inspiration for Ridley Scott's "Alien" film (1979) with its semi-organic alien spaceship interiors.

A fine sophomore effort in a series that quickly degenerated into a silly competitor with "Batman," originally aired at the same time on a rival network in the United States.

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