S2, E7: Sharon Goodwin's (S. Epatha Merkerson) childhood sweetheart arrives at the hospital, but finds himself in dire straits. To help get his financial footing, Dr. Halstead (Nick Gehlfuss) gets lured into a concierge doctor app idea. Meanwhile, a young woman with a heart infection is treated by Dr. Rhodes (Colin Donnell) against Dr. Charles' (Oliver Platt) advice and Reese's (Rachel DiPillo) former patient, a sex trafficking victim, reaches out to her for help.