Prof. Millard pretends to be dead and helps Jeff King ferret out Vulcan, the evil traitor at the science academy. Donning his Rocket Man costume King goes from one hair raising rescue to the next in order to keep the newly invented Decimator out of the clutches of Vulcan and his minions.
Tristram Coffin
Jeff King
Mae Clarke
Glenda Thomas
Don Haggerty
Tony Dirken
James Craven
Prof. Millard
I. Stanford Jolley
Prof. Bryant
House Peters Jr.
Burt Winslow
Douglas Evans
Chairman
Ted Adams
Martin Conway
