C'mon guys some previous reviewers have nearly written a novel commenting on this episode. It's just an old 60's TV show ! This episode of Star Trek is notable because of the most serious babe (Yeoman Barrow's) ever used on Star Trek and the fact that it was filmed in a real outdoor location. Unlike the TNG and Voyager series which were totally confined to sound stages.<br /><br />This use of an outdoor location (and babe) '1' )  as bscn where 6907 = 6907