HBO has revealed the first trailer for season 5 of their hit series "Boardwalk Empire." The final season premieres Sunday, September 7 at 9 P.M. and creator Terence Winter promised "a powerful and exciting conclusion" when announcing the show's cancellation early this year. Winter also said in an "Invitation to the Set" video, that the series would explore the character Nucky's childhood and feature the young version of other characters around him.
