The explosion is caused by a deadly build-up of methane gas, just as the Upper Big Branch explosion earlier this year. The mine owner "Dan Blackwell" (interesting choice for the character's name) also funded the election of his hand-picked Attorney General through corporate campaign contributions. (Doesn't this sound eerily similar to the election of our WV Supreme Court Justice Brent Benjamin.)
Check out this preview. They even mention Massey Energy's practice of appealing violations to prevent paying fines. The episode premieres Sunday at 9:00p.m. on TNT.
Cross posted at WVaBlue.com.