Roarke and the Westies hide a dead mobster's body and stage crimes to cover the murder before Gotti retaliates. Polk pressures Keenan to investigate Sweeney's Mafia ties, while Bridget uncovers more of Cahill's plot.

The Westies rob a Colombian disco in a desperate bid to free Flanagan from John Gotti's grip.

Roarke clashes with Sweeney over selling stolen cocaine, but Sweeney has other plans. As Gotti receives a Hibernian Society award, he orders a hit. Bridget discovers Cahill's target is from her past. Keenan struggles to help his son.

Roarke works to establish a dependable cocaine source while avoiding Gotti's proposition. Polk pushes Keenan to use surveillance equipment.

Roarke borrows money from Ruby Stein for a cocaine transaction with a wealthy downtown dealer, but it falls apart. Keenan pressures an older Westie to get to Sweeney. Bridget and the IRA cell target Colonel Markham.

Sweeney and Roarke clash over a Westie's drug arrest. Keenan uses this to manipulate Sweeney and win Polk's trust. Flanagan's personal life crumbles. Bridget deepens her undercover role as Cahill's motives grow uncertain.

Roarke and Sweeney's fallout divides the Westies. Bridget advances the mission but faces harsh truths. Polk pressures Sweeney and Gotti while Keenan struggles with guilt.