Deputy Sheriff "Smoke" Sanderson (Bob Custer) is after a gang of smugglers, led by Brad Vogel (J.P. McGowan) operating along the Texas/Mexico border but he does not know that Chet Clayton (Perry Murdock), the brother of his sweetheart, Wanda Clayton (Phyllis Bainbridge), is one of the gang members.

Mounties O'Malley and Calhoun are sent to see why miners are not returning with their gold. Arriving, they recover the gold from a robbery attempt.