Mine 9 (2019) is a tense disaster survival drama about nine Appalachian coal miners trapped two miles underground after a methane explosion. With only one hour of oxygen left, the men fight claustrophobia, collapsing tunnels, and dwindling hope in a gripping story of endurance and sacrifice.

Från IMDB:
Two miles into the earth, nine Appalachian miners struggle to survive after a methane explosion leaves them with one hour of oxygen.