The Space Traveler Lassie : Season 6 Episode 18
TV-G (self-applied) CBS 30m
Aired: January 10th, 1960 @ 7:00 PM EST on CBS
When Timmy and Don accidentally release the guinea pig from an experimental rocket, they replace it with Timmy's guinea pig Alexander the Great. But authorities suspect the guinea pig on the rocket was exposed to deadly radiation.
