Rafael Poueriet

Holmes' former protege, Kitty Winter (Ophelia Lovibond), returns to New York after a three-year absence to warn him that a killer is eliminating everyone involved with a case they worked on together in London, and they're the next targets. As Sherlock, Kitty, Joan and the NYPD join forces to find the perpetrator, Watson discovers Kitty has a life-changing secret.

Samaritan demonstrates its true power by taking control of New York for 48 hours and erasing crime from the city in an attempt to lure The Machine out of hiding.

As Elizabeth and President Dalton head to Rome for the G20 Conference, she is concerned for Henry's safety when he is sent to Israel to intercept the doomsday cult's bio-weapon before it is deployed. Also, Blake reveals a personal secret to Elizabeth, and Elizabeth goes behind Stevie's back to ask Russell to get her off Harvard Law School's waiting list. (TV-14 L, V)