In the sixth episode of Season 4, titled " Zoo ," a chaotic and deeply unsettling 18-month birthday party for Jericho serves as a flashpoint for the series' final confrontations. Episode Plot Highlights: "Zoo"
: While Dorothy and Sean finally begin to process their grief, the series ends with a chilling hint that the Church of Lesser Saints' influence remains, specifically regarding Julian’s future.
: Recognizing she can never truly be part of the Turner family as she dreamed, Leanne sets fire to the Turner home in a final, cathartic act of sacrifice. Eps6Servant - Season 4
: Sean and Julian reach a boiling point, culminating in a physical brawl. Sean tries to force Julian to see the danger Leanne poses, reminding him of their collective failure during Jericho’s death.
The final season focuses on , moving toward an emotional conclusion: In the sixth episode of Season 4, titled
: Dorothy begins to piece together the truth about Leanne’s long-standing obsession. By reviewing her old news tapes, she realizes Leanne has been stalking her since a children's beauty pageant years prior. Broader Season 4 Themes & Conclusion
: The overarching question of when Dorothy will remember the tragedy of her son’s death is finally answered in the penultimate episode. : Sean and Julian reach a boiling point,
: Leanne throws an impromptu birthday party for Jericho, transforming the Turner home into a literal and figurative zoo with goats, snakes, and a group of random neighborhood mothers.