Nucky headed to Ireland to try and set up a trade line of guns for Irish whiskey on 'Boardwalk Empire' (Sun., 9PM ET on HBO). What he walked into was akin to a civil war within the Irish rebellion against Britain. The man he went to meet, who was the leader of The Cause, lost a son in the battle and so had lost his will to support further bloodshed.
This put a serious crimp in Nucky's plans as the demand for firearms would cease along with a cease fire. But just as things felt hopeless, after the leader put Nucky in a car back to the port with one of his men, gunshots erupted behind them.