In the wake of a bloody gangland war, Declan assumes sole control of Montreal's drug trade. But new arrivals from Italy complicate matters.

Feeling the squeeze on a debt owed to the cartel, Declan pushes back on his new competitors. Splintering loyalties start to destabilize the status quo.

Families don't get touched. At least that used to be the rule. But when the other side breaks it, Declan reciprocates by shattering it completely.

Nats and Valentina each deal with the consequences of their actions. Declan's smooth pathway through the ports hits a major snag.

Teresa and Christian's burgeoning fentanyl business causes major collateral damage for Rose. Valentina's confession comes back to haunt her.

As word of Valentina’s dilemma spreads, tension within the Cosoleto family grows. Teresa and Christian try a new tactic to undermine Declan.

As the bikers make trouble for the Cosoletos, Nellie’s deal with a key witness hits a setback. Indiscretions in his own camp come back to bite Declan.