Calvin Sidey is a cowboy of the old-school, no-guff sort--steely, hardened, with his own personal code. It's the 1960s, and he's living off the grid in a stifling trailer on the prairie when his adult son, Bill, seeks his help. A mostly absentee father, and a virtual no-show as a grandfather, Calvin nevertheless reluctantly agrees to stay with his grandchildren for a week. He decamps for his son's dark and musty basement, to the small town where he once was a mythic figure, and soon enough problems arise: a boy's attentions to seventeen-year-old Ann are increasingly aggressive, and a group of reckless kids portend danger for eleven-year-old Will. Calvin only knows one way to solve a problem: the Old West way, in which scores are settled, ultimatums are issued, and your gun is always loaded. In the changing culture of the 1960s, Calvin isn't just a relic, he's a wild card and a threat.