Susan receives a message from her niece on her answering machine, saying that Chloe's "sick." The call is traced to New York City, putting Susan on a plane. Officers Boscorelli and Yokas are assigned to chaperone Susan in the search for her sister. Chloe is found in "Urinetown," suffering a broken heart, but Little Susie is not with her. Pratt hits on Chen several times throughout the day, and also performs an unauthorized procedure with Gallant on a dying man. Abby returns to her apartment, where Carter catches her drinking a beer. He confronts Luka about her relapse, and Abby herself later. She tells Carter not to worry about her. Romano signs Weaver up to meet with the Women's Health Coalition. Corday requests immediate time off from Romano to join Mark and Rachel in Hawaii.