Saltmarsh’s future rests in the hands of three factions that compete for supremacy. Two of the factions represent the opposing sentiments that have grown in town in recent years. The third is a secret group that seeks to undermine Saltmarsh and seize control of the region. These factions’ struggles play out in the day-to-day lives of the townsfolk and the political maneuvering of Saltmarsh’s town council.