New residents arrive at County, including 2nd year Nick "Coop" Cooper. Coop talks back to Romano and is nearly killed when Neela gives him too much epi during an asthma attack. Abby's frustrating day starts with an awful round of managing triage and ... (more)gets worse when she gets a special "Dear John" letter from Carter in the Congo while her fellow nurses threaten a walkout and her opinions are ignored. Romano's mood gets nastier when he is fitted with an antiquated hook for his missing arm. Pratt uneasily meets Chen's old-fashioned parents for dinner in what turns into a last supper for their relationship.