As Kitty begins to unravel due to the imminent threat to her safety, Sherlock and Joan intensify their efforts to help her. Also, the origin of Sherlock and Kitty’s relationship is revealed.
Run Me Out — Zola Jesus
Ending Scene where Kitty returns to find Sherlock in his London apartment, apologizing to him and wanting to start things again. Sherlock acknowledges, then proceeded to destroy his sachet of heroine.