John Robinson and Don West are transported onto a strange new world where their evil opposites exist and plan to change places with them. Will, The Robot and a reluctant Dr. Smith set out ... See full summary »

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Will Robinson (as Billy Mumy)
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Storyline

John Robinson and Don West are transported onto a strange new world where their evil opposites exist and plan to change places with them. Will, The Robot and a reluctant Dr. Smith set out to find and help the real Don and John only to be pursued by a evil John Robinson. Written by Trail Boss

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27 December 1967 (USA)  »

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(RCA Sound Recording)

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1.33 : 1
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Did You Know?

Trivia

This alternative universe episode follows the Star Trek Mirror Mirror episode broadcast two months earlier. The premise of the episode is practically identically to the Star Trek episode. See more »

Goofs

The damage done to the robot by Professor Robinson with the metal bar is gone after Major West and Dr Smith stand him up from laying on the ground. See more »


Soundtracks

Swing Low, Sweet Chariot
Written by Wallis Willis
Performed by Dick Tufeld
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User Reviews

Maybe The Darkest Chapter Of Lost In Space
11 January 2017 | by See all my reviews

John Robinson (Guy Williams) enters an anti-matter world.

I agree with the positive reviews this episode is getting here and I might add this is one of Sutton Roley's best and most memorable direction jobs ever! In case you don't his name, he directed everything from Voyage to the Bottom of the Sea, QM's The Fugitive, QM's The Invaders, The Man From UNCLE, etc. He has this habbit of getting the camera very close to actors and positioning it so you can see up their noses.

The stock music in this hour is very good and well placed with the drama of it all.

The only negative thing I have to say about The Anti-Matter Man is the very human way in which the Robot is portrayed here. His desperate comments like "Oh, I can't waste time explaining it to you" and "You MUST, you MUST (do this)". I am told if LIS got a 4th year the Robot would have become even more human! Help!

But all in all, a wonderful hour of LIS where Guy Williams and Mark Goddard prove that they can do a lot more than fiddle with controls at the Jupiter 2.


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