Where To Stream Irwin Allen's Lost in Space Season 3 Episode 19
The Promised Planet
- Aired January 24, 1968
- 60 Min
- Rated 10.0
- Number 49 Of 83 Rated Episodes
When the Robinsons nearly reach Alpha Centauri, they find a human base run by young people. They convince the adults that Penny and Will aren't their children and they leave in the Jupiter 2.