Synopsis by Hans J. Wollstein
No less than two mystery villains terrorized this Pathé serial filmed in ten chapters at Charleston, NC, and starring handsome Cullen Landis as an American industrialist turned Secret Service agent. The "McGuffin" this time was the gem of the title, an invaluable and world famous ruby coveted by both the Ghost and a gentleman (or was it gentle-lady?) known only as "Operative K-17." But who was the Ghost? And how did young Mr. Landis save the world from yet another megalomaniac? Chapter ten, not too surprisingly entitled "The End of the Trail," solved all the mysteries and provided a happy ending for the hero and his fiancé Eugenia Gilbert. Written by Paul Fairfax Fuller, who, rumors had it, was a close relative to a Pathé executive, The Crimson Flash was one of four Pathé chapterplays directed by Arch B. Heath, a former associate of President Woodrow Wilson.