This is the original pilot, though not aired first, that sold CBS on the series.
Robert Carricart originally appeared as Wishbone, but was replaced by Paul Brinegar, so all his scenes were re-shot.
At various times, one can hear the opening strains of the classic theme from Lassie (1954), especially scenes in which June Lockhart appears. At the time this 'incident' aired, June had been playing the role of Ruth Martin on Lassie (1954) for several months - since the beginning of Season 5.
The title for this story was "The Brothers" when originally produced. In fact, the working title for the series at the time was "The Riders."