S9·E14 Captives

Episode recap

Task: Write a 280-380 word episode recap for Supernatural S9E14 (Captives).
Constraint 1: Use ONLY verifiable facts from the provided SYNOPSIS and SOURCES.
Constraint 2: Do not invent/guess titles, names, dates, counts, awards, ratings, etc.
Constraint 3: If a detail is not in the material, omit it.
Constraint 4: Write original, neutral, encyclopedic prose in plain text.
Constraint 5: No markdown, no asterisks, no headings, no bullet points.
Constraint 6: Word count target: 280-380 words.
Synopsis: Sam and Dean try to track down Kevin's mother. Castiel is captured by an old battle-comrade and learns more about the factions of angels.
Sources:
Series: Supernatural (2005).
Cast: Jared Padalecki (Sam Winchester), Jensen Ackles (Dean Winchester), Jim Beaver, Misha Collins (Castiel).
Premise: Sam and Dean Winchester are brothers who hunt demons, monsters, and other supernatural beings.
History: They lost their mother to a demonic force; their father raised them as hunters.
Sam and Dean Winchester (played by Jared Padalecki and Jensen Ackles) are attempting to track down the mother of Kevin.
Castiel (played by Misha Collins) is captured by an old battle-comrade.
Through this capture, Castiel learns more about the various factions of angels.
The synopsis is extremely brief.
The sources provide context about the characters (Sam and Dean are brothers, hunters; Castiel is an angel/character played by Misha Collins).
The prompt asks for a 280-380 word recap.
Problem: The provided synopsis only contains about 30 words of actual plot for this specific episode. If I strictly follow "Use only supplied facts" and "If the synopsis is sparse, stay concise rather than guessing," I cannot reach 280 words without inventing details.
Conflict Resolution: The instructions say "If the synopsis is sparse, stay concise rather than guessing." This contradicts the "280-380 word" requirement if the content is insufficient. However, as an archivist, I must prioritize the "verifiable facts" and "never invent" rules. If I cannot reach the word count without violating the "no guessing" rule, I must provide the facts available. But usually, in these LLM prompts, if a word count is specified, the user expects the model to expand. But the instructions explicitly forbid inventing plot points.
Let's look at the sources again. Can I expand using the series context?