S7·E9 Mort: Ragnarick

Episode recap

Task: Write a 280-380 word episode recap for Rick and Morty S7E9 (Mort: Ragnarick).
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: "Rick seeks the infinite. Morty tries to help."
Source [1]: Series title: Rick and Morty (2013). Rating: TV-MA. Genres: Animation, Comedy, Sci-Fi & Fantasy, Action & Adventure. Tagline: "Science makes sense, family doesn't." Overview: Follows a sociopathic genius scientist.
Source [2]: Creators: Dan Harmon, Justin Roiland. Cast: Chris Parnell, Spencer Grammer, Sarah Chalke, Justin Roiland. Premise: Fractured domestic lives of a nihilistic mad scientist and his anxious grandson are complicated by inter-dimensional misadventures.
Source [3]: Premise: Follows a sociopathic genius scientist who drags his inherently timid grandson on adventures across the universe.
Source [4]: Metascore: 84. Years: 2013-2026. Seasons: 12. Network: Adult Swim. Genres: Animation, Action & Adventure, Comedy. Awards: 2015 Annie Award nomination for Best General Audience Animated TV/Broadcast Production; 2014 BTVA Television Voice Acting Award nomination.
Source [5]: Characters: Rick Sanchez (cynical mad scientist) and Morty Smith (good-hearted but fretful grandson). Premise: Split time between domestic life and interdimensional adventures across an infinite number of realities, traveling to other planets and dimensions.
The synopsis for S7E9 is extremely brief: "Rick seeks the infinite. Morty tries to help."
The prompt asks for a 280-380 word recap.
Problem: There is almost no plot information in the provided text for this specific episode. I cannot invent plot points. I cannot describe scenes. I cannot describe the "infinite" or how Morty helps.
Constraint Check: "If the synopsis is sparse, stay concise rather than guessing."
Conflict: The user wants 280-380 words, but the provided material only gives one sentence of plot. If I follow the instruction "If a detail is not in