Conrad's ex-fiancée, Catherine, is admitted to the hospital with abdominal pain that proves to be quite the medical mystery.
Bell grows frustrated when Conrad's dad and new chairman of the board requests Conrad's input in his discussions about hospital expenses. A sharp and sophisticated medical device representative tries to promote her costly products.
When Padma's pregnancy takes a dangerous turn, the doctors come together to find a solution and turn to Ian to perform a miracle; Conrad makes a decision regarding his love life and Devon leads his own clinical trials at Chastain.
On National Nurses' Day, Chastain's nurses are severely understaffed and overworked, leaving them all feeling exhausted and under appreciated.
Stefan and Elena are stranded in a remote location, where Stefan gets philosophical about Damon and Elena's relationship; Luke and Liv form a dangerous new strategy; Bonnie finally admits the truth.