Sherlock Season 4: 9 Big Questions After 'The Lying Detective'
3. What Happens To Watson?
After the reveal that Watson's therapist is actually the woman he met on the bus, and also the fake Faith Smith, AND hitherto unknown Sherlock's sister, and possibly any other female character we've ever met, she then points a gun at him.
While it's safe to assume that Eurus does not kill John Watson, she is seemingly in a state-of-mind that would lead her to pulling the trigger, so could she actually shoot him? And if not, how exactly does he get himself out of this one?