Third-year med student Lucy Knight reports to the ER. Doug hits the nail on the head when he describes her as a "hit-the-book" student. Lucy's first day finds her informing a wife of her husbands terminal condition, comforting a pregnant woman, getting locked on the roof and trying to figure out Kerry Weaver's "Tour on Tape." Greene extends a protective wing over Lucy, who's forced to endure Carter's irritation. However, asked to insert an IV, Lucy requires Carol's help.