Eamon and Amanda meet to discuss a way to end the war; the proposal does not go over well with Frank; Jimmy and Michael meet at a crossroads; the family gathers for Jamie's memorial service.
Frank visits his brother, Bren, in jail and remembers why his brother is not a man to be trifled with; danger lurks around every corner; Amanda and Michael come to a realization.
The Kinsellas strike back at Eamon Cunningham as Amanda starts to blame others for Jamie's death; Michael unintentionally puts Anna in danger; the endgame starts to take shape.
The walls close in; the Kinsellas are blacklisted by Eamon Cunningham, but necessity is the mother of invention; Amanda pitches an idea to force Cunningham back onto his heels.
The Kinsellas bury one of their own as they prepare for an all-out war against the Cunninghams, Michael and Jimmy set a plan in motion for revenge, and Amanda orders her first hit.
The Kinsellas deal with the fallout of the Cunningham's relatiation, Frank attempts to avoid an all-out war, while Michael is torn between helping Jimmy seek his revenge and staying above the fray so he can see Anna again.
The Kinsellas are a small but tight-knit crime family in Dublin, Ireland, increasingly at odds with a powerful drug cartel. When the hotheaded son of Frank Kinsella gets into a violent confrontation with one of Eamon's men, the Cunninghams retaliate.