First, in "Ace of Cactus Range," a frontier U.S. marshal must fight a dangerous gang of diamond smugglers who have taken a young woman and her father hostage. Art Mix, Virginia Warwick, Clifford Davidson star. AKA: "Ace of Cactus." Then, in "Romance of the Wasteland," Mix comes to the rescue when a little girl gets lost at a train depot after running off to chase a puppy. With Alma Rayford. Includes color-tinted sequences. 101 min. total. Standard; Soundtrack: music score. Silent with music score.