Batman [Bruce Wayne; also as Limpy]; Robin [Dick Grayson]; Commissioner James Gordon; Mart Morris (airplane pilot); Sam (airplane pilot); Mr. Ross (President of Ross Radium Company); Eddy Bacher (airplane pilot); Blacky Cain (villain); Shiner [Mr. Smythe] (villain, Ross' manager); Limpy (villain, radium company worker)
Synopsis
An underworld radium gang uses the talents of some pioneers of the air age called "The Dawn Patrol" to innocently carry the contraband material.