Poster of Cast and Crew in Swiss Family Robinson - The Intruder (Season 1 - Episode 21) - The Intruder

Swiss Family Robinson - Season 1 - The Intruder (Episode 21)

Plot: A meteorite lands close to the Robinsons's treehouse home and brings an alien substance that almost drives the family from their island.
Episode Aired On:
Monday, December 30 1975
50 years ago