Ithaqua plot
Cole Franklin, an American mercenary, is recruited as a guide at the remote outpost of Fort William, which is struggling to survive as the fur trade declines. With dwindling supplies, the fort's guards blackmail Cole into leading a trading party to a nearby Native village, where they discover a massacre and encounter the remaining half-mad inhabitants responsible for the massacre. Although the trading party survives with minimal losses and returns to the fort with an abundance of food and furs, the supernatural force responsible for the massacre follows them back.