Ex-lawman Alex Flood is now the ruthless boss of Jericho, a town he once helped to clean up. He has bullied his way into owning 51% of all of Jericho's businesses with the exception of the stagecoach line run by the strong-willed widow Molly Lang. Molly and the townspeople turn to former Deputy U.S. Marshall Dolan for help, but can he help save them?