Sweeney strikes a deal with Castellano: rob a Colombian disco and Flanagan walks free; Bridget seeks counsel about Cahill, while Keenan investigates the killing of a cop in Boston.

Sweeney lets Roarke sell cocaine only if he sources it himself, putting him in Gotti's crosshairs as Gotti suspects the Westies are defying Castellano; Bridget helps Cahill secure explosives for their IRA plot; Polk pressures Keenan to wear a wire.