Heal 'em and wheel 'em: the exciting, Emmy Award-winning fourth season of ER unfolds in a three-disc collection featuring 22 episodes plus Dynamic DVD Extras. A new face enters the mix at Chicago's County General: Dr. Elizabeth Corday (Alex Kingston) comes across the pond from England to work as a surgical fellow. There are plenty of new challenges ranging from the personal (Greene tries to patch things up with his father in San Diego) to the professional (Ross puts his career on the line to save the life of a seven-month-old baby boy), from the romantic (Hathaway can't commit to Ross) to the rowdy (two injured flying Elvis impersonators are gurneyed into the trauma rooms). Drop in today. No appointment necessary!