Dick Tracy's G-Men is the second of three Republic serials starring Ralph Byrd as Chester Gould's granite-jawed comic strip plainclothesman. Tracy's foe in this one is notorious international spy Zarnoff (Irving Pichel), who will stop at nothing to sabotage America's military defense system. Not even death can stay Zarnoff from his appointed rounds: after being "killed" by Tracy and the G-Men, the villain is revived by miracle drugs. At one point, Zarnoff masterminds the explosion of a dirigible, permitting Republic to blithely (and tastelessly) insert newsreel footage of the "Hindenburg" disaster. After 15 pulse-pounded chapters, Tracy finally catches up with Zarnoff in the middle of the desert for a grim denoument. Having literally nothing to do as the nominal heroine is young Phyllis Isley, who went on to a rather more rewarding screen career as Jennifer Jones. ~ Hal Erickson, Rovi