This week on 'Boardwalk Empire' (Sun., 9PM ET on HBO) Nucky Thompson (Steve Buscemi) comes to the harsh realization that several members of his inner circle have betrayed him.

As he ponders recent events, feeling isolated, Nucky fills Margaret in on his affairs in a way he hasn't before. When Margaret (Kelly MacDonald) asks, "Who is against you?" he replies "All of them ... " before listing his new enemies off one by one.

Happily for Nucky, Margaret has a core of pure steel, and as she comes to his aid in his current predicament she shows herself to be far removed from the downtrodden and abused wife she was at the beginning of Season 1.