Alma asks Hickok to investigate the tragic fallout of her husband's gold claim purchase. McCall plots revenge after being humiliated at poker. Charlie Utter departs camp for Cheyenne. Doc Cochran makes a house call to the Bella Union.

The town buries its most famous casualty while the man responsible is tried in Swearengen's saloon. Trixie helps a widowed Alma care for an orphan. Doc warns of an impending epidemic.

Bullock's vigilantism makes new enemies. Utter returns to Deadwood to say goodbye to an old friend. Teenage siblings arrive on a quest to find their father. Alma holds on to her late husband's claim despite another offer from Farnum.

A much-needed vaccine arrives in Deadwood. There are rumblings of a treaty with the Sioux. Swearengen is reluctant to accept advice from Farnum while Trixie is away. Alma reconsiders her plans for her gold claim. Stubbs learns an important lesson from Tolliver.

Adams helps Swearengen out of a jam. Jewel seeks out Doc for treatment. Leon and Eddie go back to work for Cy. Alma's father arrives from New York. The camp's choice for a sheriff doesn't please Bullock.

Cochran's ominous prognosis puts the camp on alert. Smallpox survivor Andy Cramed returns as a minister. Swearengen asks an unlikely pair to pull a scam on Commissioner Jarry. Martha Bullock has second thoughts about staying in Deadwood.

Jarry worries that Bullock and George Hearst will side with Montana on the annexation issue and a showdown looms between Wu and Lee. Andy Cramed holds his first religious service, though he doesn't count on Tolliver's participation.

Mining magnate George Hearst arrives while the camp is preparing for a celebration. Yankton officials react to a Swearengen power play. Violence erupts among the town's Chinese population.