S10·E1 Black

Episode recap

Task: Write a 280-380 word episode recap for Supernatural S10E1 (Black).
Role: Meticulous television and film archivist.
Constraints:
Use ONLY verifiable facts from the provided SYNOPSIS and SOURCES.
No invented/guessed titles, names, dates, counts, awards, ratings, box-office, or plot points.
Omit details not in the material.
Original, neutral, encyclopedic prose.
Plain text only (no markdown, no asterisks, no headings, no bullet points).
Word count: 280-380 words.
Synopsis: "Dean is a demon and running amuck with Crowley while Sam tries to figure out what happened to his brother. Meanwhile, Castiel is dealing with his fading grace."
Sources:
[1] TMDB: Series title Supernatural (2005), TV-14, Drama, Mystery, Sci-Fi & Fantasy.
[2] Wikipedia: Created by Eric Kripke. Broadcast on The WB and The CW for 15 seasons (Sept 13, 2005 - Nov 19, 2020). Follows brothers Sam (Jared Padalecki) and Dean (Jensen Ackles).
[3] IMDb: Cast and crew credits.
[4] TMDB Cast: Sam and Dean Winchester lost their mother to a demonic force; father raised them to hunt paranormal evil.
[5] Simple English Wikipedia: Horror, drama, fantasy, fiction. Created by Eric Kripke.
Episode: S10E1 (Black).
Plot: Dean is a demon. He is running amuck with Crowley. Sam is trying to figure out what happened to his brother. Castiel is dealing with his fading grace.
Context: The series follows brothers Sam and Dean Winchester. Sam is played by Jared Padalecki and Dean is played by Jensen Ackles. The series was created by Eric Kripke.
The synopsis is extremely brief: "Dean is a demon and running amuck with Crowley while Sam tries to figure out what happened to his brother. Meanwhile, Castiel is dealing with his fading grace."
The word count requirement is 280-380 words.
Problem: I cannot invent plot points. If I only use the synopsis, I will only have about 35 words.
Constraint Check: "If the synopsis is sparse, stay concise rather than guessing."
Conflict: The prompt asks for 280-380 words, but also says "If the synopsis is sparse, stay concise rather than guessing" and "Never invent or guess... plot points."
Resolution: