Patrick Boll

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.

When the number of a leading tech executive comes up, Finch infiltrates her corporation to gather intel – but can't determine whether she is working in her company's best interest or planning to destroy it from the inside. Meanwhile, Carter continues to question Detective Beecher’s (guest star Sterling K. Brown) integrity after he provides incriminating information about a fellow detective.

Alicia and Frank Prady square off in a crucial debate in the race for State’s Attorney as Peter and the city of Chicago prepare for a potential riot. Chris Matthews.

Goren and Eames investigate a psychologist and her family after a musician romantically linked to the doctor is murdered.

When one of Alex's friends is framed for a domestic terror attack, they turn to her for help. With an upcoming vote in the House for a Muslim registry bill, the task force realizes this attack isn't a coincidence. The Collaborators are actively stirring fear to pass the registry, and the team heads to the Hill to turn the votes.