That may have been the best hour of TV I've watched in a LONG time. Maybe since the Game of Thrones episode in S1 where a main character we don't expect to dies. Anyway, the war coming is going to be a doozy. I loved Capone coming in like the cavalry at the end. And Nucky is now going to owe his brother something fierce if he wins the war. I like how the Chalky / Nucky relationship got fleshed out in the episode. I always like the Chalky character because despite him being who he is, a bootlegger, he has principles, and he's loyal.
And I'm so sick of Margaret and her scheming. Her character just annoys me now, so her not being in it, made it all the better.
BTW if Steve Buschemi doesn't get an Emmy nomination this year, especially based on that episode, it's a crime. In fact, he should win.