Warning: Spoilers ahead for Doctor Who season 15, episode 5, "The Story and the Engine."Doctor Who season 15, episode 5, "The Story and the Engine," has a direct connection to episode 2, "Lux," even if the reference that bridges the two narratives is only incredibly brief. As the second adventure to pair Ncuti Gatwa's Fifteenth Doctor with Varada Sethu's Belinda Chandra, "Lux" introduced Alan Cumming's Mr. Ring-a-Ding/Lux Imperator while also including the twist of him being the God of Light in Doctor Who's Pantheon. "The Story and the Engine" builds on the show's current obsession with deities, which contextualizes the primary setting in Lux's debut episode.