Find some paper and write down anything you can make out clearly. Anyone able to hear this should do the same. If there's a common theme we can find it and figure out what's going on with them, at least.
If they're the people who should be here - [Never mind why the normally practical-minded young man seems to firmly believe this is the case.] - maybe we can find out what happened.
[ Voice ]
If they're the people who should be here - [Never mind why the normally practical-minded young man seems to firmly believe this is the case.] - maybe we can find out what happened.