Feature version of the 1949 serial, KING OF THE ROCKETMEN: Young member of scientific group uses new rocket-powered flying suit to thwart shadowy saboteur known only as "Dr. Vulcan".

Tristram Coffinas Prof. Jeff King
Mae Clarkeas Glenda Thomas
Don Haggertyas Tony Dirken
House Peters Jr.as Burt Winslow
James Cravenas Prof. Millard
I. Stanford Jolleyas Prof. Bryant
Ted Adamsas Martin Conway
Marshall Bradfordas Dr. Graffner
Stanley Priceas Gunther von Strum
Douglas Evansas Civil Defense Chairman