After serving ten years in jail, a reformed Matthew Jennings returns to Snake Ridge to reconcile with his respectable family, but he finds his brother lying dead and his father won't speak to him.

To track down his brother's killer, he secures a position as deputy town marshal, but when he follows the evidence it leads to a man who must be innocent – his own father. Worse is to follow when a feuding outlaw gives him an ultimatum to leave town by noon or die.

Facing a race against time to uncover the truth and with a mysterious gunslinger haunting his every move, Matthew's resolve to turn his back on his past will be tested to breaking point before he faces a high noon showdown.