Michael Patrick Thornton

As Benner prepares to run for Attorney General, she seeks Lola’s help to search for anything that could compromise her campaign. Also, old wounds are re-opened when Emily’s client is hesitant to file a police report against her abusive boyfriend, and Amy Quinn and Mark find themselves arguing against each other on opposite sides of the courtroom, putting pressure on their new romance.

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.

Naomi refuses to take part in planning Maya's wedding; tensions rise between Sam and Addison; Pete and Cooper treat a teenager with a mysterious bite mark.

Naomi struggles with the idea of genetically designing babies; Violet suddenly decides to try electric shock therapy on a patient.

Addison is shaken by her father's arrival in Los Angeles; After he refuses to cooperate in a case involving a longtime patient, Cooper is arrested; Pete fights to keep a terminally ill patient alive long enough for him to meet his new daughter.