The Westies

Tensions rise as the Westies' uneasy alliance with the Italians breaks down following a botched kidnapping. Meanwhile, Flanagan returns to Roarke's crew after his release from Bellevue, Keenan joins an FBI task force, and Bridget accepts a risky mission from an IRA associate.

Roarke and the Westies conceal the body of a slain Italian mobster and fabricate evidence to prevent retaliation from Gotti. Meanwhile, Polk pushes Keenan to investigate Sweeney's connections to the Mafia, and Bridget uncovers further details of Cahill's scheme.

Sweeney negotiates with Castellano to rob a Colombian disco in exchange for Flanagan's release; Bridget consults about Cahill's situation, and Keenan looks into a Boston police officer's murder.

Roarke and Sweeney argue over the sale of stolen cocaine, revealing conflicting priorities. Meanwhile, Gotti arranges an assassination as Sweeney prepares to receive a Hibernian Society award. Bridget uncovers that Cahill's target is someone from her past, while Keenan faces challenges in supporting his son.

Sweeney allows Roarke to sell cocaine on the condition that he source it himself, drawing the attention of Gotti, who suspects the Westies are disloyal to Castellano; Bridget assists Cahill in obtaining explosives for an IRA operation; and Polk urges Keenan to cooperate by wearing a wire.

Roarke secures a high-risk loan from Ruby Stein to facilitate a cocaine deal with a wealthy downtown dealer, but the transaction quickly goes awry. Meanwhile, Keenan attempts to pressure Sweeney by targeting an older Westie associate, and Bridget, along with her IRA cell, shifts focus to Colonel Markham.

Tensions rise between Sweeney and Roarke after a Westie member is arrested, prompting Keenan to exploit the situation to gain leverage over Sweeney and build trust with Polk. Meanwhile, Flanagan struggles with personal turmoil, and Bridget intensifies her mission as Cahill's intentions become increasingly unclear.

Tensions within the Westies escalate as Roarke and Sweeney's conflict divides the gang between its older and younger members. Bridget continues pursuing the mission despite confronting painful revelations, while external pressures from Polk mount against Sweeney and Gotti, and Keenan struggles with feelings of guilt.