G_Hamilton
(Post-Reichenbach) John is struggling with the loss of Sherlock, and no matter how hat he tries to move on, he can't. He keeps being drawn back to the man who saved him, to the man he owes so much to.
Sherlock has spent two years tracking down all of Moriarty's web to make sure that all the people he cares about stay safe. But one man has escaped him at every turn.
Moran, the sniper to immediately threaten John's life at the Fall, has outsmarted Sherlock every time he chases him down. Now, he has his sights, once again, set on John. Now, Sherlock has to go back to the flat he left behind two years ago in order to protect the man he never truly left.
(This is an alternate to the Series 3 plot line and doesn't follow its story.)