Popular Star Trek guest star James Sloyen plays the mysterious "family friend" and "advisor" in this Worf/Alexander story reminiscent of "Yesteryear" from the Star Trek animated series. "Firstborn" begins with promise: Sloyen plays the Klingon well, and writer Rene Echevarria fleshes out some interesting Klingon rituals as the plot begins to take shape. Unfortunately, while Sloyen and Bonsall (Alexander) develop a chemistry that only becomes more intriguing as the story progresses, Sloyen and Dorn (Worf) are not a good pairing. Their characters bring out the worst in each other, and their relationship becomes tedious to watch, especially as it becomes the focal point of the episode.
The B story, about the hunt for the Duras Sisters, includes a cameo from Quark and is mostly filler but good fun.