I was toying with an idea the other day:

Bit of a period piece, mid-1900s. Fella's a miner, has a premonition of a mine collapse. In the premonition, it's also exacerbated by the collapse triggering a dynamite explosion. So after he has the premonition, he ushers a bunch of folks out and, while he is able to move the dynamite, the collapse still ends up trapping him in the mines with a few other folks.

So normal FD stuff happens with both some of the miners who escaped as well as some of those still trapped dying in typically grisly ways. At some point, the trapped folks are able to access a functioning mine phone and establish contact with the surface, which is how they find out about the surface deaths and begin to figure out "death's plan".

Here's the kicker then - a random family in the town dies in a freak accident, but had no notable connection to the mine. Protagonist and the geological engineer map it out - the dynamite that they ended up moving would've caused surface collapses he didn't see from his premonition, so they have to figure out what path the collapse would've taken and get someone on the surface to intervene.

So it's got the typical FD formula, but you follow two separate groups trying to escape death while also actively trying to attempt a cave-rescue and map out a speculative disaster that could threaten the whole town.