This is the 16th and last of the western series from Lone Star/Paul Malvern Productions starring John Wayne. The story has been used before: undercover gov't man Wayne goes after counterfeiters led by Yakima Canutt, who are operating from a split U.
S.-Mexican border town.In order to do this, he joins the medicine show run by Canutt's former partner Earle Hodgins (Doc Carter). There is some light humor provided by Hodgins' blustering speeches and Gordon Clifford and Perry Murdock as Mike & Ike, singers in the show. Part of the show is Marion Burns (Linda Carter) Wayne's love interest in this film. IMDb says Burns appeared in 12 movies between 1931-45 and 3 TV shows between 1956-61. Plot devices in this film that have been repeatedly used: Wayne as undercover lawman; jumping of a ridge horse and all into a river as a means of escape; getting three bad guys off the horses in rapid succession by knocking one rider off his horse, jumping on the 2nd rider and both falling to the ground, remounting and jumping on the 3rd rider and both falling to the ground; being mistakenly arrested as the bad guy; about to marry the girl at the end. Acting and movie overall of average B western quality,