George Peppard and Dean Martin go head to head in the tension-filled western Rough Night in Jericho. One-time lawman Alex Flood (Martin) is now the ruthless boss of Jericho - a town he once helped to clean up. Now this officer-gone-bad has bullied his way into owning 51% of all of Jerichos businesses with the exception of the stagecoach line run by the strong-willed widow Molly Lang (Jean Simmons). Molly and the townspeople turn to former Deputy U.S. Marshall Dolan (Peppard) for help but he refuses to take on the tyrant figuring any confrontation with Flood or his men is a losing battle. How far can one man be pushed before he finally fights back?