Tony and Emmy winner Jeffrey Wright is muscling his way onto Boardwalk Empire's turf. The Emmy-nominated HBO period drama returns on September 8, and the season four trailer finds Enoch "Nucky" Thompson (Steve Buscemi) with his hands full while negotiating the Prohibition-era underworld of Atlantic City and New York City. It also offers a first look at series newcomer Wright (Angels in America), who will play Harlem kingpin Dr. Valentin Narcisse. "Only kings understand each other," he declares, before posing the foreboding question, "What shall we do, Mr. Thompson? What shall we do?" Check out the trailer below to find out what's brewing on the Boardwalk.