St. Denis Medical is back - and better than ever - in season 2 as the hospital undergoes some surprising shakeups. In Us Weekly's exclusive first look at the trailer, Joyce (Wendi McLendon-Covey) welcomes the camera crew back into St. Denis Regional Medical Center, saying, "A lot has happened since you were gone." The changes are responsible for some of the show's wildest antics yet. "I decided to bring in a professional therapy horse, but there has been an unanticipated downside," Joyce explains before the horse poops.