Shaun’s dealing with a head cold, so naturally Scott prescribes an imagined magic elixir courtesy of his in-house “renaissance pest exterminator”—a guy who moonlights as a rock star with a homemade cocktail that allegedly kills bugs, germs, and possibly the drinker.

Meanwhile, a “No Kings” protest takes Scott back to the old department, unlocking a flood of emotions and memories… including a few that can’t be unseen.