Caleb and his two partners, all former Buffalo Soldiers, are under attack from greedy town boss Morg Hagen, who doesn't want an independent business operating in the town he controls. They are also being persecuted by the insidious Ku Klux Klan, with its bloody lynchings and ominous burning crosses.
Stark signs on with the Buffalo Brigade out of admiration for the role the fearless black soldiers played in settling the West.
Once in Beaver, Prudence and Thaddeus begin a legal battle to safeguard the soldiers' civil rights, while Stark and the freighters wage an ongoing gun war to keep the line operating.
Hagen has unlimited resources and an army of gunmen to do his bidding. Will the Peacemaker's fighting skill and resolve to see justice prevail be enough to win over such overwhelming odds?