J.D. must look after a social worker, Alex, who slipped in the hospital and winds up stuck in an MRI machine. They flirt, but J.D. is reluctant to ask her out without knowing what she looks like. Elliot tries to gain Dr. Cox's favor the way J.D. has. Turk is angry at Carla when he thinks he may love her. Guest-stars include Michael McDonald as Mike Davis, Elizabeth Bogush as Alex, and Jimmie Walker as himself.