After experiencing the extreme cold, the planet gets closer to the sun, roasting it. Smith sends the robot to warn the Robinsons.



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Episode cast overview:
Will Robinson (as Billy Mumy)


The inherent dangers of the alien planet continue as the Robinsons flee south to avoid the terrible, sub-zero deep freeze threatening them. Dr. Smith defiantly stays behind in the Jupiter 2 where he obtains peculiar orbital data. Initially delighted that the Robinsons are blindly heading to their doom, deprivation from human contact finally gets to the devious doctor and he sends the robot to warn them that they're jumping straight from a freezer into a frying pan. And a once-frozen sea becomes a tempest-tossed danger. Written by statmanjeff

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Release Date:

13 October 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?


The scene where the Robinsons give thanks was recycled from the original pilot, although there it was the cliffhanger ending. In that one, as they are shown giving thanks, a gradually receding wide shot shows that the Robinsons are being watched by aliens, and leaving it up to the viewer to wonder if something will happen to the Robinsons. Those aliens were never reused in the series. See more »


A planet orbiting close enough to its sun to show the kind of motion depicted at aphelion would be close enough to experience temperatures far in excess of human habitability, shelter or not. The full orbit, as described by Professor Robinson in the diagram he draws in the sand, would result in a planet incapable of sustaining Earthlike life, plant or animal. Furthermore, the planet could not move fast enough in its orbit to go from deep freeze to oven in so short a time. See more »


Maj. Don West: You know, I've got a feeling this stuff's got a message for us if we could only read it.
Judy Robinson: What is it?
Maj. Don West: Well, it's just a piece of vegetation.
Prof. John Robinson: We found lots of this frozen solid in the ground.
Maureen Robinson: Well, it looks as though it's been charred.
Prof. John Robinson: It has.
Maureen Robinson: Burned and then frozen?
Prof. John Robinson: Mm-hm.
Maureen Robinson: Well, that doesn't make sense, does it?
Prof. John Robinson: Darling, very little on this planet makes sense, by Earth standard.
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Edited from Lost in Space: No Place to Hide (1965) See more »

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User Reviews

William Welch's First Lost In Space Episode
7 February 2015 | by See all my reviews

The Robinsons battle heat, frost and a deadly sea.

These opening five episodes of Lost In Space are just some of the greatest TV ever made. The whole cast once again shines in this hour, Guy Williams is outstanding as John Robinson, but it is the conversations between Smith and The Robot that hold this hour together for me.

The Robot has a very mechanical-man-way-of-talking but his dialogue totally shines thanks to the talents of voice artist Dick Tufeld and episode writer William Welch.

The John Williams score is outstanding.

Welch was known for scripting straight faced episodes of Voyage to the Bottom of the Sea, The Time Tunnel and Land Of The Giants...this talented writer was probably too straight for later episodes of Lost In Space. But he did return to the series about four more times (see season three's The Space Creature).

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