Well-made aerial stunts highlight this story as a construction firm hires Steele and Williams to protect their dam-building project from daredevil pilot, “The Black Ace”. 12 Chapters. Dir. Colbert Clark, David Howard
Bob Steele, Guinn Big Boy Williams, Lucille Browe, Jack Mulhall, J. Carroll Naish, Jack Perrin, Lafe McKee.