'A Town Called Mercy' Inside Look

Get the exclusive scoop on 'A Town Called Mercy,' featuring new interviews with Matt Smith, Karen Gillan and Arthur Darvill. 'The Doctor has been spending a lot of time on his own, and I think the people around him start to notice that he's becoming a little less tolerant of people,' says Matt. Karen adds, 'We see a side of The Doctor that we haven't seen before, where he really doesn't have any mercy.'