The Greatest Power
Miriam Monroe and John Conrad are two young scientific workers who, independently of each other, have discovered a chemical called exonite. Miriam discovered it while searching for a cure for cancer, while Conrad used it as a basis for a powerful explosive.
Top Cast

Ethel Barrymore
as Miriam Monroe
Miriam Monroe

William B. Davidson
as John Conrad
John Conrad

Harry Northrup
as Albert Bernard (as Harry S. Northrup)
Albert Bernard (as Harry S. Northrup)
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