Lost in Space
Invaders from the Fifth Dimension
TV Flash files “Invaders from the Fifth Dimension” as a desk essential hour — Lost in Space (1965–1968) on CBS, season 1, episode 8, aired 1965-11-03, 60 min.
From the desk
How this hour is filed
This leaf is S01E08: listed hour 8 of 83 in the Lost in Space guide, hour 8 of 29 in season 1. It aired 1965-11-03 (60 min). The listed hour before it is “My Friend, Mr. Nobody” (S01E07). Next is “The Oasis” (S01E09).
Essential hour: “Invaders from the Fifth Dimension”. Invaders from the Fifth Dimension — early Allen danger still playing space opera, before the catchphrase ate the hour.
Catalog log
Broadcast listing — not a TV Flash recap.
Macabre aliens -- quite literally talking heads -- need a humanoid brain to replace a worn out computer in their spaceship. They capture Smith, but quickly realize that his brain is unsatisfactory. The aliens release Smith so that he can bring them somebody more suitable: "a small Robinson."
Viewer FAQ
Where does Invaders from the Fifth Dimension sit in the Lost in Space guide?
S01E08 is listed hour 8 of 83 — hour 8 of 29 in season 1, season 1 episode 8.
When did Lost in Space S01E08 air?
Invaders from the Fifth Dimension aired 1965-11-03 and is listed at 60 minutes.
Where should I start?
If you want the straighter adventure, begin with the early Robinson-mission hours. If you want the camp classic, jump to later color episodes where Harris's Dr. Smith and the Robot fully hijack the tone.
In the series
Why this series still plays
The Robinson family, a stowaway villain, and a clanking robot tumble through Irwin Allen's space-opera danger. Guy Williams and June Lockhart headed the mission; Jonathan Harris's Dr. Smith stole it with glorious cowardice. Danger, Will Robinson — start straighter, stay for the camp, or vice versa.
The warning is the brand. CBS's *Lost in Space* (1965–1968; 83 episodes) sends the Robinson family, a stowaway villain, and a clanking robot through Irwin Allen's space-opera danger. Guy Williams and June Lockhart head the colony mission. Billy Mumy's Will Robinson takes the warning. Jonathan Harris's Dr. Zachary Smith steals the hour with glorious cowardice and 'the pain' monologues. Early episodes lean straighter adventure; later seasons embrace camp color. That tone shift is the structure, not a betrayal. Mark…
Filed against
- Guy Williams as Prof. John Robinson
Guy Williams’s Don Diego / Zorro carved a Z into 1950s catalog Disney adventure — theme song as instant recognition, then Lost in Space stretching the jawline into a Robinson patriarch while a stowaway stole the camp. TV Flash files him…
- June Lockhart as Maureen Robinson
June Lockhart mothered two American fantasies without blinking: Ruth Martin on Lassie, then the Robinson household on Lost in Space. Collie loyalty as a weekly serial; Irwin Allen’s space-opera danger with a stowaway and a clanking robot.…
- Mark Goddard as Maj. Don West
Mark Goddard flew the hothead as Maj. Don West on Lost in Space — Robinson family, stowaway villain, clanking robot, Irwin Allen space-opera danger. Guy Williams and June Lockhart headed the mission; Jonathan Harris’s Dr. Smith stole it…
- Marta Kristen as Judy Robinson
Marta Kristen kept the Jupiter family-shaped as Judy Robinson on Lost in Space — Irwin Allen space-opera danger, a stowaway villain, a clanking robot, Guy Williams and June Lockhart heading the mission while Jonathan Harris’s Dr. Smith…
- Billy Mumy as Will Robinson
Billy Mumy’s Will Robinson heard Danger on Lost in Space — the Robinson family, a stowaway villain, a clanking robot, Irwin Allen space-opera danger, Guy Williams and June Lockhart heading the mission, Jonathan Harris’s Dr. Smith stealing…
- Jonathan Harris as Dr. Zachary Smith
Jonathan Harris’s Dr. Zachary Smith stole Lost in Space with glorious cowardice — the Robinson family, a stowaway villain, a clanking robot, Irwin Allen’s space-opera danger. Guy Williams and June Lockhart headed the mission; Harris took…