Executive producer Macdonnell regarded the show's storyline as being identifiable to the viewing audience, with an essential family unit comprising family members "bound to the other by either a true familiar relationship or by an intangible camaraderie". A core idea of the show was to present a realistic portrayal of the real struggles faced by settlers who traveled 'The Road West', with extreme temperatures in each of the summer and winter seasons. The show's lead actor,
Barry Sullivan, was marking his fourth series and described the show as being "a piece of pioneer literature". Production moved away from Kansas in 1967, with it reported that the shift in location was always the plan, although happened sooner than anticipated due to the show's future being at risk. Ratings struggled against other shows including
Family Affair and
The Felony Squad, while Seel's character Tom Pride was killed off to reduce costs.
Filming Sullivan said in an interview that scripts for the show would be provided several weeks in advance, which allowed time to absorb the scripts in order to perfect their lines and character portrayals. ==Reception==