Lost in Space (1965–1968)
3 user 1 critic

The Space Primevals 

On a planet where a primitive people are ruled by a computer, Doctor Smith goes against character and saves Major West's life.


Nathan Juran


Peter Packer, Irwin Allen (created by)

Watch Now

From $1.99 (SD) on Prime Video


Add Image Add an image

Do you have any images for this title?



Episode complete credited cast:
Guy Williams ... Prof. John Robinson
June Lockhart ... Maureen Robinson
Mark Goddard ... Maj. Don West
Marta Kristen ... Judy Robinson
Bill Mumy ... Will Robinson (as Billy Mumy)
Angela Cartwright ... Penny Robinson
Jonathan Harris ... Dr. Zachary Smith
Arthur Batanides Arthur Batanides ... Rongah


On a planet where a primitive people are ruled by a computer, Doctor Smith goes against character and saves Major West's life.

Plot Summary | Add Synopsis


Not Rated | See all certifications »




Release Date:

4 October 1967 (USA) See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Mono (RCA Sound Recording)



Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


When the chariot first pulls up to the rock near the volcano, there are no tread tracks behind it. When Professor Robinson meets Will there, two clear tracks are visible behind the vehicle even though it hasn't moved since being parked there. See more »


The Robot: [leading the Primevals in dance] Boom boom, boom boom, boom boom BOOM!
See more »

Frequently Asked Questions

This FAQ is empty. Add the first question.

User Reviews

Sci-Fi & Volcano Disaster
25 May 2007 | by StuOzSee all my reviews

Episode five in screening order but episode three in production order (after Condemned Of Space and Hunter's Moon). The Robinson's new lost planet has a trouble-making volcano.

The Space Primevals is a good looking hour that sometimes leaves that boring sound stage for once and gives us some striking outdoor images of the full scale space pod and great sound stage dramatics from the cave men-like tribe on the planet.

The Lost World (1960) lizard drops in for a second or two but we will try to forget about that. If you take away Don, Smith and The Robot, this tone/look of this hour resembles Land Of The Giants and Voyage to the Bottom of the Sea. In fact, at about this time on another Fox sound stage, Voyage/Sea was doing a volcano episode called Fires Of Death. Irwin was at work here.

Added note: Yes, the head cave-man is often standing next to props used as The Time Tunnel core.

Great episode!

1 of 2 people found this review helpful.  Was this review helpful to you? | Report this
Review this title | See all 3 user reviews »

Contribute to This Page

Stream Comedy Titles With Prime Video

Explore popular comedy titles available to stream with Prime Video.

Start your free trial

Recently Viewed