
It is prior to the commencement of World War II, and Japan's fiendish Black Dragon Society is hatching an evil plot with the Nazis. They instruct a brilliant scientist, Dr. Melcher, to travel to Japan on a secret mission. There he operates on six Japanese conspirators, transforming them to resemble six American leaders. The actual leaders are murdered and replaced with their likeness.

as Dr. Melcher/ Monsieur Colomb

as FBI Agent Richard ‘Dick’ Martin

as Alice Saunders

as Dr. William Saunders

as Amos Hanlin

as Phillip Wallace

as John Van Dyke

as Ryder

as FBI Chief Colton

as Kearney

as Stevens

as The Dragon

as FBI Agent