A crew of coal miners becomes trapped 600 feet below ground after a disastrous collapse. As the air grows more toxic and time runs out, they slowly descend into madness and begin to turn on ... Read allA crew of coal miners becomes trapped 600 feet below ground after a disastrous collapse. As the air grows more toxic and time runs out, they slowly descend into madness and begin to turn on one another.A crew of coal miners becomes trapped 600 feet below ground after a disastrous collapse. As the air grows more toxic and time runs out, they slowly descend into madness and begin to turn on one another.