Roarke gets a risky loan from Ruby Stein to fund a cocaine deal with a silver-spooned hotshot from downtown, only for the deal to implode; Keenan targets an older Westie to pressure Sweeney, while Bridget and the IRA cell move on Colonel Markham.

Roarke and Sweeney's fallout splits the Westies, pitting old guard against young; Bridget pushes ahead with the mission but faces shattering truths; Polk increases pressure on Sweeney and Gotti; Keenan wrestles with guilt and a son slipping away.