Well, it starts off with John alone until he finds Sherlock. They solve crimes together and John moves in after killing some dude with teeth. John gets wrapped in explosives by Moriarty and Sherlock freaks out a lotta bit. The Woman tries to bang Sherlock. Sherlock doesn’t bang The Woman. Sherlock jumps off a building and breaks John’s heart. Sherlock comes back from the dead wanting to bang John, but he can’t because John’s banging an assassin he doesn’t know is an assassin. Go figure. The assassin assassinates Sherlock and he goes to his Mind Palace that’s a shrine to his love for all things John and comes back from the dead, like, again but for real this time. He kills Hannibal’s brother for John. Moriarty was fake dead, too. John still doesn’t bang Sherlock.