u/ArchitectRed1

Has anybody been looking at the map lately? With the new unlisted promotional ad coming out, I've been re-watching everything and trying to put the lore together.

So far, I really only have a few questions. Where is the Therapist running to at the end of the movie? What is the significance of the blue canister, briefcase and green hazmat suit?

This exact green hazmat suit in the trailer can be found in the OG episode titled, "Damage Control" by Kane Pixels. It is mentioned in the episode that this is actually Peter Tench. It is said in the episode, "on the day of his disappearance, Tench was his teams designated camera operator."

I'm not saying that this movies green hazmat is Peter Tench. However, do notice how the teams are assembled. Consisting of one camera operator, and at least two workers whose jobs are currently unknown.

From what we know, Tench died shortly after escaping to the surface, leaving only 3 of the original team left. I think this is why we only see 3 researchers in the trailer instead of 4, because Tench has died by this point in time (July of 1990).

Maybe this is the same team from the Backrooms series; George Levy, Marvin Leigh, Peter Tench and Ronald McCarthy. Or maybe, that's totally wrong. Just a theory!