Call the Midwife: Series 9

Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for "Call the Midwife" Season 9.
Keys: overview (160-220 words), primer (array of exactly 4 concise bullet points).
Constraints: Use ONLY provided synopsis and sources. No invented facts. No markdown. No asterisks. No headings. No bullet points in the text (except the array structure). Output valid JSON only.
Input: TMDB Season Synopsis and 5 Sources.
TMDB Season Synopsis: Medics and midwives of Nonnatus House enter a bold and innovative era. They face unexpected challenges: population shifts, changing rules, and returning old diseases. Personal experiences involve love, loss, and doubt. The future of Nonnatus House is under threat.
Source 1: Set in 1950s London. Drama following midwives in poverty-stricken areas.
Source 2: Cast/crew info (no specific plot).
Source 3: Cast info (Vanessa Redgrave, Jennifer Worth (voice), Jenny Agutter).
Source 4: Premiered Jan 15, 2012 on BBC1. Based on book trilogy by Jennifer Worth. Period medical drama.
Source 5: British period drama about nurse midwives in East End of London in late 1950s, 1960s, and 1970s.
Overview: Needs to be 160-220 words.
Drafting: The medics and midwives of Nonnatus House enter a bold and innovative era during this season. As they work in the East End of London, they encounter a variety of unexpected challenges that test their capabilities. These difficulties arise from shifts in the population and changes to existing rules. Additionally, the medical staff must contend with the return of old diseases that haunt the community. Beyond the professional medical duties, the individuals at Nonnatus House navigate their own personal lives, which are fueled by experiences of love, loss, and doubt. These personal struggles occur alongside the professional pressures of their medical environment. Furthermore, the very future of Nonnatus House itself comes under threat during this period. Set within the context of a British period drama, the series follows these nurse midwives as they provide care in poverty-stricken areas. The narrative explores the intersection of medical practice and the evolving social landscape of the time, as the characters face both external societal changes and internal emotional conflicts while maintaining their commitment to the community they serve.
Word Count Check (Overview):
1. The 2. medics 3. and 4. midwives