U.S. Marshal Johnny Mack Brown once again goes undercover in this Nevada Mckenzie series entry from Great Westerns Prod./Monogram. Masquerading as a parson and a drifter, Sandy Hopkins (Raymond Hatton) and Nevada Jack McKenzie (Mack Brown) come to the aid of the beleaguered residents of Goldville, a small ranching community being terrorized by greedy saloon keeper Ace Benton (Kenneth MacDonald) and his gang of cutthroats. Unbeknownst to the citizenry, the railroad is planning to build tracks through town and Benton is attempting to secure the land by scaring off the settlers.

Landry has Sam Martin killed. When Tim and Chito find Martin and his son, Chip says Matt Potter was responsible. But when Tim and Chito start their search, no ones knows a Matt Potter.

A Royal Canadian Mounted Police sergeant must mediate a land rights dispute between an advancing railroad construction gang and French Canadian trappers in the rugged Northwest Territory of Canada.

Krag Sabine has aroused the wrath of all the ranchers by stealing their land with the aid of his henchmen, led by Ace Barco; when Lafe Martin objects, the outlaws shoot him down. Lucky Randall promises Ann Martin he will avenge her wounded father. He sets up headquarters on the Martin ranch and sends for Bob Merritt and his men, the Texas Playboys (Jesse Ashlock, Leon McAuliffe, Cotton Thompson, Junior Barnard and Luke Wills). Krag organizes his remaining men for an attack on the ranch. Lucky's men get the upper hand but Krag escapes with Ann as his hostage.