Boardwalk Empire “Margate Sands” Season 3 Episode 12 (Season Finale) airs Sunday Dec 2 2012 (9:00-10:00 p.m. ET/PT) on HBO.
Episode Synopsis: Desperate to weaken Gyp’s (Bobby Cannavale) alliance with Masseria (Ivo Nandi) and reclaim Atlantic City, Nucky (Steve Buscemi) cedes control of one of his prized assets to Rothstein (Michael Stuhlbarg). Harrow (Jack Huston) returns to Gillian’s (Gretchen Mol) brothel for some unfinished business; Luciano (Vincent Piazza) is forced to take on a new heroin partner after being arrested in New York; Chalky (Michael Kenneth Williams) and Capone (Stephen Graham) put their enmity on hold while taking on Masseria’s men; Margaret (Kelly Macdonald) decides to end one relationship and considers resuming another
Show Summary: Atlantic City, New Year’s Eve, 1922: The Roaring `20s are about to begin in earnest. Despite a booming economy, alcohol is scarce and gangster violence is heating up. With his marriage to Margaret already on the rocks, Nucky Thompson faces the challenge of mending old relationships and encounters new competition from a hairtrigger gangster determined to siphon off his business