An internationally-notorious criminal scientist returns to the US to sell his latest invention, a disintegrating gas, to a foreign power. When he arrives, however, he is spotted by a young Coast Guard man, whom he kills - and thus earns the enmity of the entire US Coast Guard, but especially the murdered Guardsman's older brother who, together with his reporter-girlfriend and her comical photographer, vigorously sets to tracking him down and interfering with his plans to develop the city-melting gas in quantity. A Republic Serial in 12 Chapters.
Bela Lugosi
Boroff
Ralph Byrd
Lt. Terry Kent
Maxine Doyle
Jean Norman
Richard Alexander
Thorg
Lee Ford
Snapper McGee
Herbert Rawlinson
Cmdr. Boyle
John Picorri
G.A. Rackerby [Chs. 2-12]
Allen Connor
Dick Norman
Thomas Carr
Ens. Jim Kent [Ch. 1]
Lawrence Grant
Rabinisi - Boroff's Spokesman at Screening [Ch. 1]
Carleton Young
Henchman Dodds [Ch. 4]
George Chesebro
L.H. Degado - Chief Thug [Ch. 5]
Ranny Weeks
Wies - Ambulance Orderly Thug [Ch. 4]
