S7·E16 Mother's Day

Episode recap

Task: Write a 280-380 word episode recap for NCIS S7E16 (Mother's Day).
Constraint 1: Use ONLY verifiable facts from the provided SYNOPSIS and SOURCES.
Constraint 2: Do not invent/guess titles, names, dates, episode counts, awards, ratings, box-office, viewership, or plot points.
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: "Secrets arise when Gibbs' former mother-in-law surfaces as a witness in a murder investigation."
SOURCE [1]: NCIS (2003) is a TV-14 Crime, Drama, and Action & Adventure series.
SOURCE [2]: Mentions the show originated as two back-door pilot episodes of JAG in April 2003. Mentions Pauley Perrette plays Abby.
SOURCE [3]: Mentions Sean Murray and Brian Dietzen were recurring in Season 1 before becoming regulars. Mentions Rocky Carroll goes back to Season 5.
SOURCE [4]: Cast and crew credits link.
SOURCE [5]: Created by Donald P. Bellisario and Don McGill. Cast includes Sean Murray, David McCallum, Mark Harmon, Brian Dietzen.
The synopsis is extremely brief: "Secrets arise when Gibbs' former mother-in-law surfaces as a witness in a murder investigation."
The sources provide context about the show (creator, cast, origin), but very little about the specific plot of Season 7, Episode 16.
The prompt asks for a 280-380 word recap.
Problem: There is almost no information to reach 280 words without violating the "never invent or guess" rule.
If I only use the synopsis, I have one sentence.
If I add show context, I can expand slightly, but I cannot expand the recap of the episode itself because the synopsis doesn't provide plot details beyond the mother-in-law being a witness.
Self-Correction/Strategy: As a meticulous archivist, I cannot fulfill the word count requirement of 280-380 words if the provided text only contains one sentence of plot. To invent details to hit the word count would violate the primary instruction: "You write ONLY verifiable facts that are explicitly supported by the provided SYNOPSIS and SOURCES." and "If the synopsis is sparse, stay concise rather than guessing."
Wait, the instruction says: "If the