When a wandering mercenary named Hogan rescues a nun called Sister Sara from the unwanted attentions of a band of rogues on the Mexican plains, he has no idea what he has let himself in for. Their chance encounter results in the blowing up of a train and a French garrison, as well as igniting a spark between them that survives a shocking discovery.
The only business in the Wild West town of Jericho that corrupt sheriff Alex Flood doesn't control behind the scenes is the stagecoach owned by tough-willed widow Molly Lang and her right-hand man, Hickman. Former marshal Dolan, recently hired by Lang and Hickman as a driver, wants to stay out of the mess, but when he sees Flood's henchman Yarbrough assault Lang, he steps up to fight the corruption.
A tugboat operator and a waterfront cafe owner clash with a dock foreman who is trying to change the way things on the piers have been done.
