Jimmy was led to the North Side of the large corridor, where he was shown that there was a staircase behind a small, insignificant looking door. If he was being honest with himself, he would've checked every other room before this one, and yet, Terrence claimed that the most important part of this entire bunker was at the top of this particular staircase.
This was a stamp of how strongly his intuition was letting him down, and he was aware of it. He didn't like it, but he pushed his mild self-loathing aside, and carried Terrence across the staircase.
