In 1828 the town of Flat Ridge is over run by a band of outlaws looking for lost treasure said to be buried somewhere in town. In their quest for dominance, the outlaws kill Sally, a prostitute who happens to be the sister of Rachel and a former member of the disbanded Rose Gang. With the weight of grief on her heart, Rachel decides to shed her new found religious faith to bring vengeance upon her sister's killers. After laying Sally to rest, Rachel goes in search of her former posse to assist her in avenging her sister's death.