Date: October 16, 1997 The Jupiter 2 is to launch, but a saboteur wants to destroy it. Unfortunately he is part of the Jupiter 2 Crew now Lost In Space.


(as Tony Leader)


(as S. Bar-David), (created by)

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Episode credited cast:
Will Robinson (as Billy Mumy)
Rest of cast listed alphabetically:
Security Guard


An historic day. The Robinsons - John, Maureen, Judy, Penny and Will - become Earth's first family of outer space, on its way, accompanied by pilot Maj. Don West, to colonize a planet circling Alpha Centauri; however, Dr. Smith, as an enemy agent of a foreign power, means to set them on a course of doom by reprogramming the robot to destroy their ship, the Jupiter 2, eight hours in space. The unfortunate doctor winds up caught in his own treachery and hurls off into space with the Robinson party. His excess weight first throws the ship off course, then, with the robot coming to life and bashing all the controls, they all become "hopelessly lost in space." Written by statmanjeff

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Release Date:

15 September 1965 (USA)  »

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:

(RCA Sound Recording)

Aspect Ratio:

1.33 : 1
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Did You Know?


When trying to decide whether or not to abort the mission, Maj. West points out the cost as $30billion. Adjusted for inflation,the cost in 2016 is $230,242,872,228.01 - over a quarter of a trillion dollars. See more »


When Doctor Smith revives Major West from suspended animation, he takes off the Major's right hand glove to attach a type of reviving mechanism. When West wakes up, Smith drags the groggy West to the flight panel so West can fly the ship. When the camera looks down at Major West's hands controlling the flight stick, he is shown wearing gloves on both hands not one. See more »


[Dr. Smith checks his reprogramming of the robot]
The Robot: At exactly launch plus eight hours: inertial guidance system - destroy; radio transmitter - destroy; cabin pressure control system - destroy.
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Featured in Lost in Space: The Prisoners of Space (1966) See more »

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User Reviews

Sci-Fi & Disaster
6 February 2015 | by See all my reviews

In 1997 an American family and a reluctant stowaway become lost in space.

The start of one of the greatest TV shows ever made. All 83 episodes of Lost In Space are not perfect but nearly every episode has a good moment or two that makes the whole hour worthwhile. Sometimes that good moment is a knockout bit like the teaser of season two's The Forbidden World where the Jupiter 2 crash lands on an alien planet.

If you are a fan of shows like The Outer Limits (1963), Voyage to the Bottom of the Sea (1964), Batman (1966), The Time Tunnel (1966), Star Trek (1966), QM's The Invaders (1967), Land Of The Giants (1968), Shazam! (1974) and Irwin Allen's Captain Nemo (1978) you will love Lost In Space.

Producer Irwin Allen is very much the star of anything he makes. His control-freak quirks are all over Lost In Space (but less so in season two). I wrote Irwin's IMDb Bio so if you don't know what I mean by Irwin his Bio.

The Reluctant Stowaway is one of my two favourite episodes of the series (the other favourite is The Derelict) as it is just totally outstanding from the first frame to the last frame.

A sight and sound wonder with Dick Tufeld narrations and John Williams music providing the sounds. The sights include amazing footage of spaceship Jupiter 2.

We also see Jonathan Harris at his very best as the EVIL Dr Smith.

I am both a sci-fi nutcase and a disaster nutcase, this hour covers both what more could I want?

I have many more Lost In Space episode reviews on this site.

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