Watson: Sherlock doesn't have friends.
Allistair: Not in the traditional sense. He drops in and out, appears at odd moments to make outrageous and highly specific requests.
Watson: Respectfully, that doesn't sound much like a friendship to me.
Allistair: Then perhaps you better revise your definition. You can't expect Sherlock Holmes to relate to you the way others might. The moment you do, he'll migrate out of your life, and you'll be the poorer for it. You do realize that, don't you?
Holmes: (about his father) You should've trusted me when I told you he wouldn't show.
Watson: Trusted you? I've been glued to your side for weeks now, and you have refused to share even the tiniest bit of your personal history. You know what, Sherlock, I don't trust you. Because thanks to you, we're still basically just strangers.
Molinari: You have a consultant for plane crashes?
Gregson: No, he's a ...
Holmes: A specialist in the field of deductive reasoning. And unraveling the complex chain of events that can turn a triumph of human innovation into a smoldering pile of wreckage in seconds. Well, I can't think of a more compelling application than that.
Special billing was given to Aidan Quinn (and) for this episode.
Original International Air Dates:
Canada: November 8, 2012 on Global
United Kingdom: November 27, 2012 on Sky Living
Czech Republic: December 18, 2012 on AXN
Germany: February 14, 2013 on Sat.1
Belgium: February 24, 2013 on VIER