Nucky shakes up the status quo; Jimmy deals with some tricky family issues; Van Alden addresses Agent Sebso’s (Eric Weiner) “temptations.” Written by Howard Korder; directed by Allen Coulter.What HBO refuses to tell you is cloaked in the text invisible. * This is a biggest episode yet for Dabney Coleman’s character The Commodore. * This is the biggest episode yet for complicated IRS agent Nelson Van Alden. * We learn a lot about Jimmy’s backstory this week. * The episode kicks off with Houdini’s brother. * We’re reminded why they called what Bernie Madoff did what they called it. * Richard “The Phantom” Harrow demonstrates Jimmy recruited the right vet. * The episode ends with Nucky getting his palm read. "Boardwalk" remains the most-watched series currently running on pay cable, and hit an uptick last Sunday: