S9·E9 Salute Your Morts

Episode recap

Task: Write a 280-380 word episode recap for Rick and Morty S9E9 (Salute Your Morts).
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.
TMDB Episode Synopsis: "Morty and Summer go to camp, broh. Beth and Jerry home alone, broh."
Series Sources:
[1] Overview: Science makes sense, family doesn't. Follows a sociopathic genius scientist.
[2] IMDb: Created by Dan Harmon, Justin Roiland. Cast: Chris Parnell, Spencer Grammer, Sarah Chalke, Justin Roiland. Theme: Fractured domestic lives of a nihilistic mad scientist and his anxious grandson.
[3] TMDB Cast/Crew: Follows a sociopathic genius scientist who drags his inherently timid grandson on adventures across the universe.
[4] TV Guide: Metascore 84. 2013-2026. 12 seasons. Adult Swim. Animation, Action & Adventure, Comedy. Awards: 2015 Annie (Nominated), 2014 BTVA (Nominated).
[5] Wikipedia: Rick Sanchez (cynical mad scientist), Morty Smith (good-hearted but fretful grandson). Interdimensional adventures across infinite realities/planets/dimensions.
Episode: Season 9, Episode 9, "Salute Your Morts".
Plot: Morty and Summer go to camp. Beth and Jerry are home alone.
Characters involved in the episode (based on synopsis): Morty, Summer, Beth, Jerry.
Series context: Rick and Morty is an animated comedy, sci-fi, fantasy, and action & adventure series on Adult Swim. It follows Rick Sanchez, a sociopathic and cynical mad scientist, and his grandson Morty Smith.
Problem: The synopsis is extremely short (two sentences). The word count requirement is 280-380 words.
Constraint Check: "If the synopsis is sparse, stay concise rather than guessing."
Conflict: The user wants 280-380 words, but the provided facts only support about 40-50 words of content without violating the "never invent or guess" rule.
Strategy: I must expand on the series context provided in the sources to reach the word count, while