Tread Perilously boards the Enterprise bound for Space Scotland for an episode of Star Trek: The Next Generation called "Sub Rosa."

On the occasion of her grandmother's death, Dr. Beverly Crusher visits Space Scotland where the weather modification system is on the blink and Dr. Crusher encounters a strange young man. Her grandmother's journals also make reference to a young man named Ronin -- note the spelling -- who brought her great pleasure. Now, he has his sights on Bev, the latest member of Clan Howard that he hopes to seduce.

But what does all of this has to do with the sudden appearance of fog on the bridge of the Enterprise?

Erik and Justin trot out their terrible Scottish accents and consider how difficult it is to place a Gothic romance (or is it horror) into the 24th Century of Star Trek. Erik reveals his ambivalence toward Rogue One: A Star Wars Story while Justin praises it. Erik declares that official Star Trek cannot do eroticism (even if Star Trek fans can) and Justin lodges a complaint against the term "lover." Both also want Deanna Troi to get a better job.