The sixth episode of the season throws us back into the main plot. Everything that has been back-flashed and filled in, all the new arcs set in motion, begin their final ascent – or should that be descent?

After the appearance of the Guilty Remnants in previous instalments, we now get the researchers making a return. It was thanks to the scientific study Nora came away $3m. This time they bring her only aggravation.

Along with this they have a theory. That certain people act as a “lens.” These potential lenses cause people within close proximity to vanish. Not a great suggestion to a woman who lost her entire family. A scientific explanation would be something people would search for after a rapture with the same intensity that religious folks would look to God.

The oddness here, is Nora is later told the lenses over the phone, about the spiritual connection. It could be this group are separate from the main scientific movement. Clearly the script writers have given themselves room for manoeuvre regarding cause and consequence.

The peak of the episode, and potentially the season, is a conversation between Erika and Nora. It takes place in the Murphy household after Erika has an outburst at a town meeting, assembled for the missing girls. While there, Nora robs a new version of the questionnaire used to determine the validity of sudden departures.

Both actresses build tangible tension and its possibly the most charged scene ever witnessed in a television show.

This would have made for a perfect episode, but after this scene Kev drops his bombshell to Nora. His acceptance and admission he is going crazy (or is he?) should have been a season peak but it was overshadowed by the previous scene. Instead it felt flat.

Still, worthy of its rating.

9/10