On paper this is not much of a story. Heck with any other actors it might have been just that. Cliff Robertson was appeared in various episodes of the show pulls of the episodes and makes it memorable despite the lack of action and any real tension in the episode.
This is more a psychological story than anything else if you think about it which explains the lack of action.
It's about how a man deals with a different situation with totally unfamiliar elements are thrown at him.
It is funny how he reacts to things like the truck and calling it a "monster". It's amazing from his point of view how much people will achieve in future time. Now when we think about certain things now it's no big deal. A lot of people just take it for granted. I think that's what this episode is trying to say. It's a nice ode to the pioneers to and that whole spirit of going a direction and not going back despite the unpleasant stuff that lies ahead. Robertson's characters put it all in perspective by the end.