Grey's Anatomy: Season 22

Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for "Grey's Anatomy" Season 22.
Constraints:
Use ONLY provided SYNOPSIS and SOURCES.
No invented/guessed titles, names, dates, etc.
Original, neutral, encyclopedic prose.
Plain text (no markdown, no asterisks, no headings, no bullet points).
Output: Valid JSON only.
JSON Keys:
overview: 160-220 word summary of the season's narrative arc.
primer: Array of exactly 4 concise bullet points summarizing essential previous lore/character positions/stakes.
Synopsis:
Season 22 focuses on intense, large-scale disasters.
Major bridge collapse brings dozens of critically injured patients to Grey Sloan Memorial.
High-stakes personnel changes.
Dr. Meredith Grey and Dr. Nick Marsh decide to marry after Nick is severely injured in the bridge collapse.
Meredith realizes she doesn't want to let fear dictate her life.
Departure of Dr. Owen Hunt and Dr. Teddy Altman.
Owen and Teddy leave for a new life in France.
They survive a near-fatal plunge in his car during the bridge collapse.
Sources:
[1] Grey's Anatomy (2005) is a drama.
[3] Follows personal and professional lives of doctors at Grey Sloan Memorial Hospital.
[4] Medical drama centered on Meredith Grey.
[5] Meredith Grey was a first-year surgical intern at Seattle Grace Hospital.
Goal: 160-220 words.
Content: Season 22 centers on large-scale disasters, specifically a major bridge collapse that results in dozens of critically injured patients arriving at Grey Sloan Memorial Hospital. This event triggers significant personnel changes and personal developments for the medical staff. Following a severe injury sustained by Dr. Nick Marsh during the bridge collapse, Dr. Meredith Grey and Dr. Nick Marsh decide to marry, as Meredith chooses to no longer let fear dictate her life. The season also marks the departure of long-time series regulars Dr. Owen Hunt and Dr. Teddy Altman. After surviving a near-fatal plunge in a car during the bridge collapse, the two characters leave to begin a new life in France, concluding their long-running storylines. The season highlights the intersection of professional medical crises and the evolving personal lives of the doctors working at the hospital.
*Word Count Check