That's weird.
The swinging chains are a problem.
Motion underground that would power the swing would normally be indicative of instability.
Instability in a mine is a contraindication that it is wise to stay there.
She says "why trespass ? are u prepared to die? who are you? you've come to forward, near us, now go . " ??
or maybe.
Woman: "Mine control to Micheal, are we prepared (or "clear to") detonate?"
Micheal: "Roger, you can go ahead now." (No personel in area)
Woman: "I don't know, it says it's (or "the fuse is") failing!" (A bad electric fuse connection warning light on a panel concerned her?)
Micheal: "Just go now!" (Blast before fuse fails, leaving live explosives
He is playing mine games.
Agree these places can be death traps. I noticed in a couple of clips there is a barbed wire fence warning people to keep out of the mine next clip some of the barbed wire is missing ( no doubt cut by the 'explorers' then in another clip the fence is gone altogether.
Yes.....mines are very dark when the lights are off.....