For the first time, you can see where it all began. The entire line of Sherlock GNAs take place after the famed dive off of Reichenbach Falls, where Sherlock and Moriarty allegedly plunged to their deaths. Now you can see what happened after those incredible events, and how Sherlock got back in the investigatory saddle, through the eyes of his trusted friend, Dr. Watson.
Sherlock trusts you to prove your deductive prowess and solve cases that have left Inspector Lestrade, and Scotland Yard, puzzled to say the least. Be careful though, not only are your investigations perilous, but Sherlock himself has little tolerance for failure. However you choose to go about solving the mysteries, as always, it's your story, your choices, and your adventure.