Robert Eli

In the first episode of a two-part event, Watson begins her new job as an in-house investigator for an insurance firm. However, her attention shifts to a case that is personal for both her and Holmes when they join forces to eliminate an imminent threat to Kitty. Stuart Townsend guest stars.

When a teenaged girl is found dead, Rollins (Kelli Giddish) goes undercover at a high end rehab center where the victim was last seen alive. Meanwhile, Benson (Mariska Hargitay) tries to overcome her doubts about Sheila (guest star Brooke Shields).

When a woman with a rare disease inexplicably causes excruciating pain and subsequent death to those she encounters, the circumstances point to illegal drug trials… or worse.

Jamie and Eddie suspect foul play when they respond to a distress call from a woman having an allergic reaction to her lifesaving medication, and learn that her husband is an EMT assigned to take her call, but didn't respond. Also, Erin learns that a man she convicted years earlier might be innocent of the crime, and Frank handles a PR crisis in his department when an expose on Garrett Moore is published.

Dr. Manning (Torrey DeVitto) and Dr. Charles (Oliver Platt) deal with a 16-year-old patient suffering from abdominal pain who adamantly refuses any drugs for fear of winding up like her drug-addicted father. Dr. Halstead (Nick Gehlfuss) relives a bit of his past when a patient, along with his brother, turn out to be former high school classmates whose past history with him is anything but stellar. Meanwhile, Dr. Choi (Brian Tee) works on a woman 32 weeks pregnant who has a big reason to do everything in her power not to deliver the child, much to the dismay of Goodwin (S. Epatha Merkerson), Charles and the hospital staff. Elsewhere, April (Yaya DaCosta) is less than thrilled to discover her brother Noah (guest star Roland Buck III) has an enterprising side-business that involves her new boyfriend Tate (guest star Deron J. Powell). Dr. Rhodes (Colin Donnell) avoids meeting up with his sister Claire (guest star Christina Brucato) so he doesn't have to deal with family issues. Rachel DiPillo and Marlyne Barrett also star.