Sherlock, Series 4

Mary Watson (on pre-recorded DVD):
PS. I know you two. And if I'm gone, I know what you could become, because I know who you really are; a junkie who solves crimes to get high, and the doctor who never came home from the war. Well, you listen to me. Who you really are, it doesn't matter; it's all about the legend. The stories, the adventures. There is a last refuge for the desperate, the unloved, the persecuted. There is a final court of appeal for everyone. When life gets too strange, too impossible, too frightening, there is always one last hope. When all else fails, there are two men sitting, arguing in a scruffy flat, like they've always been there and they always will. The best and wisest men I have ever known. My Baker Street Boys; Sherlock Holmes and Doctor Watson.