S15·E6 Golden Time

Episode recap

Task: Write a 280-380 word episode recap for Supernatural S15E6 (Golden Time).
Constraints:
Use ONLY verifiable facts from the provided SYNOPSIS and SOURCES.
No invented titles, names, dates, counts, awards, ratings, box-office, or plot points.
If a detail is not in the material, omit it.
Write original, neutral, encyclopedic prose in plain text.
No markdown, no asterisks, no headings, no bullet points.
Word count target: 280-380 words.
Synopsis (TMDB): Sam and Dean are visited by an old friend. Castiel investigates the disappearance of a local teen.
Sources:
[1] Series title: Supernatural (2005). Genre: Drama, Mystery, Sci-Fi & Fantasy.
[2] Created by Eric Kripke. Broadcast on The WB and The CW for 15 seasons (Sept 13, 2005 - Nov 19, 2020). Characters: Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles).
[3] Cast: Jared Padalecki, Jensen Ackles, Jim Beaver, Misha Collins. Premise: Brothers follow father's footsteps as hunters fighting evil supernatural beings (monsters, demons, gods).
[4] Premise: Sam and Dean Winchester lost their mother to a demonic force. Father raised them as soldiers to kill paranormal evil.
[5] Genre: Horror, drama, fantasy, fiction.
Episode title: Golden Time (from prompt).
Episode number: S15E6 (from prompt).
Characters in episode: Sam Winchester, Dean Winchester, Castiel.
Plot points: Sam and Dean are visited by an old friend. Castiel investigates the disappearance of a local teen.
The synopsis is extremely sparse: "Sam and Dean are visited by an old friend. Castiel investigates the disappearance of a local teen."
The sources provide context about the series (creators, actors, general premise), but very little about this specific episode.
Constraint Check: "If the synopsis is sparse, stay concise rather than guessing."
Constraint Check: "Write a grounded 280-380 word episode recap."

Problem: The provided synopsis only contains two sentences of plot. If I strictly follow "Use only supplied facts" and "If a detail is not in the provided material, you omit it rather than guess," I cannot reach 280-380 words without violating the "never invent or guess" rule.

Wait, let me re-read the instructions: "Write a grounded 28