A complete copy was recently found in the Moscow Film Archive in Russia, in great condition. It still has the Russian title cards. Apparently Russian film director Sergei M. Eisenstein was a big fan of star Pearl White and managed to acquire a copy.
Episode titles:1. The Hooded Terror2. The Tiger's Eye3. A Woman's Perfidy4. The Man from Java5. Spies Within6. A Living Target7. Germ Menace8. The Untold Secret9. Poisoned Darts10. Double Crossed11. Haunts of Evil12. Flashes in the Dark13. Enemy Aliens14. Underworld Allies15. The False Signal16. The Vial of Death17. The Death Switch18. At the Pistol's Point19. The Hooded Terror Unmasked20. Following Old Glory
Except for the first two episodes, no surviving copies of this film are known to exist. Please check your attic.
This film - and many other Pearl White serials - was shot on the palisades of Fort Lee, NJ, at a time when most movies were filmed on the East Coast. In fact, Fort Lee - not, as is often believed, Hollywood - is the actual birthplace of the motion picture industry.