I watched a 14 minute preview online. The coal company they tracked was a $ 4 million startup, with a 30-day period to make or break the company. I'm guessing they made it past the 30 days, since the show has to go on for the season. It'll give people the idea that coal companies are really mom and pop operations, with not much safety.
It was interesting to see the equipment (Joy Global's, I think), but I think they picked the miners from Central casting for Beverly Hillbillies types. They are probably all nice people, but this was the first time I saw English subtitles on a show where the people were speaking English. I couldn't understand half of what they said.