Tom and Séamus Connolly are looking to consolidate their position in Dominion but their plans are complicated by the arrival of some new faces to the town. Meanwhile, Pádraig Connolly struggles to help contain an outbreak of typhoid.

Micí Bán Connolly's actions lead to a rift between Tom and Séamus Connolly. The typhoid epidemic worsens, and Kate struggles to come to terms with the discovery that her baby is still alive.

As the date of Captain Pat's trial approaches, a plan is put in place to guarantee Pádraig Connolly's silence. Meanwhile Jacob Hopkins is struck down by the typhoid epidemic that has gripped the town.

In the final episode of this Western series, the town of Dominion is engulfed by murder and mayhem as Captain Pat's plans come to fruition. Tom and Séamus Connolly embark on a mission of revenge.