S1, E12: Nurse Lockwood (Marlyne Barrett) gets arrested for refusing to violate hospital policy and draw blood from a suspected DUI patient without his consent. Dr. Halstead (Nick Gehlfuss) discusses with his lawyer the severity of the pending lawsuit against him. Elsewhere, Dr. Manning (Torrey DeVitto) and Sharon Goodwin (S. Epatha Merkerson) deal with a single mother and her 6-month old, but when the baby's injuries come into question, concerns are raised. Meanwhile, Dr. Charles (Oliver Platt), who is dealing with some personal issues, and Sarah Reese (Rachel DiPillo) attend to a patient that was hit by a car, but suspicions abound when they dig deeper.