Carl Lucas went to jail for a crime that he didn't commit, and came out a new man: the unbreakable hero named Luke Cage! But now, he finds himself on the wrong side of the law and thrown in prison once again. What dark power has caged Luke once more? And when the entire world is threatened, how can he save everyone from the inside of a prison cell? With his mind mangled, Luke grasps for any foothold he can find. Which will be difficult, since this is no ordinary prison...and the chain gang he's on isn't doing road work. What horrors await in the dreaded mine?