William Munny is a retired, once-ruthless killer turned gentle widower and hog farmer. To help support his two motherless children, he accepts one last bounty-hunter mission to find the men who brutalized a prostitute. Joined by his former partner and a cocky greenhorn, he takes on a corrupt sheriff. Retired Old West gunslinger William Munny reluctantly takes on one last job, with the help of his old partner Ned Logan and a young man, The Schofield Kid.