Nearing the end of his long association with Universal, rough-edged silent screen cowboy Hoot Gibson released eight sound Westerns in 1930 before the studio dropped him in favor of the more streamlined Ken Maynard. Mounted Stranger, a remake of Gibson's 1924 The Ridin' Kid From Powder River, certainly broke no new ground and the once so popular entertainer was increasingly criticized for refusing to change with the times. Gibson played Pete Ainslee, who as a child witnessed his father's killing. The adult Ainslee, known as the "Ridin' Kid," locates the killer, Steve Gary (Fred Burns ), whom he wounds in a gun battle. Gary, unfortunately, recovers and seeks revenge. Ainslee manages to stay a couple of steps ahead of the killer, who is subsequently killed by his own disgruntled gang members.