The Wilson Steel Plant, on the outside, seemed like a simple abandoned building. On the inside? It did have a few traps to ward off potential investigators, and for good reason.

In the Wilson Steel Plant, Jigsaw—well, John Kramer—was seated in his wheelchair, working on a blueprint of a trap. There was a bit of medical equipment off to the side, and in a fenced off corner, there were a few old monitors showing a group in a larger test of sorts—The Nerve Gas House.