Captain’s log: stardate 5373.4 D.C. Fontana, like Samuel A. Peeples lends her credibility to the blossoming series by penning this very entertaining episode that aired on 15 September, 1973. The Guardian of Forever makes an appearance in this episode, and as Captain James T. Kirk (William Shatner) and Spock (Leonard Nimoy) return for their sojourn…