"And in the End..." is the twenty-second episode of the fifthteen season of ER and the series' final episode. It first aired on April 2, 2009 on NBC. It was written by John Wells and directed by Rod Holcomb. The final episode features the return of the majority of the main characters in the show, such as Noah Wyle as John Carter, Sherry Stringfield as Susan Lewis & Eriq La Salle as Peter Benton. The story of it has Carter opens a new medical facility for the underprivileged in his stillborn son's name while Tony Gates deals with the case of alcohol poisoning when teens played a drinking game. It also has Rachel Greene, a new medical student, back in County General where her father Mark Greene worked.