What is the plot?

What is the ending?

Is there a post-credit scene?

How did Julie end up throwing the rope down to Boyd in the dungeon, and what exactly happened when she crossed her threshold?

The episode reveals that Julie crosses her threshold and is sent into a time-shifted experience where she becomes a silent witness to earlier events in the dungeon sequence. In that altered timeline, she ultimately throws the rope down to Boyd, explaining the mystery of who helped him escape in Season 2.

What really happened in the church basement with Christopher, Jasper, and the Boy in White?

Victor's recovered memory clarifies that Christopher was not actually speaking to Jasper; he was speaking to the Boy in White. The revelation takes place in the church basement and reframes Victor's long-buried understanding of how the town's past was tied to the children and the hidden rules of the place.

What did Victor remember about the children, and how do those memories connect to the faraway trees and the town’s origin?

Victor recalls that the town's mystery began with children who were born in the dark and murdered in the dark. According to the episode's revelations, the children lay on stones, poured their hope into the roots, and that act became connected to the creation of the faraway trees and the symbol Jade later saw.

What is happening with Fatima after she kills Tillie, and why is Boyd so focused on covering it up?

A major part of the episode follows the fallout from Fatima killing Tillie at the end of the previous episode. Boyd and Ellis spend much of the episode trying to manage the practical consequences and protect Fatima, while the pressure around her situation keeps escalating.

Where does Elgin take Fatima at the end of the episode, and what does he say to her there?

Elgin leads Fatima to the bunker and tells her that Ellis will meet her there, but the situation turns sinister. He claims that Fatima is pregnant with a baby that is not hers, then grabs her and forces her into the room, ending the episode with her abduction.

Is this family friendly?