Carter makes the mistake of bringing his naïve girlfriend, Kem (recurring guest star Thandie Newton), to observe the emergency room. Kem makes an impact--wanted or not--almost everywhere she wanders, ranging from an AIDS ward to the classroom and even in an unsanctioned ride with the paramedics. Pratt experiences a difficult night and questions his abilities as he treats a variety of patients, including a young boy who broke his back while sledding in the snow and an elderly man with fluid in his lung. Meanwhile, Gallant accompanies the paramedics and is nearly shot in a violent domestic dispute, during which he befriends a frightened boy. And Weaver dedicates a new center to Romano that has everyone talking.