Episode #43: "William Wilson"

Debut: SUNDAY, OCT. 20 (9:00-10:00 p.m.)

Other HBO playdates: Oct. 20 (11:00 p.m.), 22 (11:00 p.m.), 23 (10:00 p.m.) 25 (9:00 p.m.) and 26 (11:00 p.m.)

HBO2 playdates: Oct. 21 (9:00 p.m.), 25 (12:05 a.m.) and 27 (3:50 p.m.), and Nov. 7 (8:00 p.m.)

Eli confronts Nucky after Willie makes an unpopular decision. Margaret has a surprise encounter at her job on Wall Street. Joe Masseria orders Lucky Luciano to return to Tampa and deal with Vincenzo Petrucelli. Gillian goes cold turkey with Roy Phillips' (Ron Livingston) help. Still seething over his brother's death, Al Capone (Stephen Graham) tries to get Johnny Torrio (Greg Antonacci) to turn on rival gangster Dean O'Banion (Arron Shiver). As the relationship between Chalky and Daughter Maitland deepens, Valentin Narcisse (Jeffrey Wright) exerts his control over Dunn Purnsley (Erik LaRay Harvey) and the Northside.

Written by David Matthews and Terence Winter; directed by Jeremy Podeswa.