The Commodore Fingers Nucky in an Election-Fraud Scheme (Season Two, Episode One)
Never underestimate the power of an angry old man. The main story line of Boardwalk Empire Season Two saw Nucky going up against three people who were once his closest allies: his erstwhile mentor, his former protégé and his brother. Still smarting over Nucky's betrayal years earlier, the septuagenarian Commodore discovered willing partners in his son, Jimmy, and Eli Thompson. By the end of the season premiere, Nucky was under arrest for election fraud, harkening back to the same charge that sent the Commodore to jail in the previous decade. Nucky's prison time only lasts until the next episode, when he learns most of his ward bosses have defected to the Commodore's side. But the nefarious plan is already unraveling by the fourth episode – Nucky's actual culpability in rigging Mayor Edward Bader's election notwithstanding – as Kaestner is incapacitated by a massive stroke.