John Breen (John Wayne), a Kentucky militiaman falls in love with French exile Fleurette De Marchand (Vera Ralston). He discovers a plot to steal the land that Fleurette’s exiles plan to settle on and aims to foil it.

Western that starts when a man (Matt Dow) is mistaken as a train robber. After the town’s sheriff shoots the kid he’s riding with, Dow clears his name and ends up as the new sheriff. He romances a Swedish woman and settles in to a peaceful life only to find that the boy has a few secrets of his own.

Construction workers in World War II in the Pacific are needed to build military sites, but the work is dangerous and they doubt the ability of the Navy to protect them. After a series of attacks by the Japanese, something new is tried, Construction Battalions (CBs=Seabees). The new CBs have to both build and be ready to fight.