Sherlock Holmes's big return didn't disappoint, with a tongue-in-cheek action opening, fan-service aplenty, and an injection of hilarity into the show. The plot to blow up parliament is certainly one that you could see Sherlock getting embroiled in, but fittingly, it takes a backseat in favour of developing the relationship between Holmes and Watson: if this man doesn't even know who our monarch is, why should gunpowder, treason and plot get in the way of TV's finest bromance? Sherlock is typically cold and calculating, as he can't see why it's such a big deal, but it's really touching that despite the sociopathic tendencies, he really does want to be forgiven by his best friend. The scene on the tube is a particular highlight, as Martin Freeman breaks viewers' hearts with a wonderfully emotive performance. In the end, it's just not worth staying angry at the people you love the most. That's the lovely message of this episode, brilliantly shown by Mark Gatiss, and it's a message that many fans are still telling themselves over the "how he did it" confusion. We'll never know, unfortunately. But maybe it's better we get over it, for our love of the show's sake.