A silent action movie serial consisting of 15 chapters.
Ben F. Wilson
as John Shirley
Neva Gerber
as Polly Marion
Francis McDonald
as 'Red' Warren
Joseph W. Girard
as Dr. Reynolds
Nigel De Brulier
as Professor Duval
Howard Crampton
as Captain Cronin
William Quinn
as Emil LaRoux
Irene Hunt
as Mrs. Reynolds
Ernest Shields
as Howard Van Cleft
Hoot Gibson
as
Josephine Hill
as
Evelyn Selbie
as Pale Ida
