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 BarrymoreMiriam Monroe
William B. DavidsonJohn Conrad
Harry NorthrupAlbert Bernard (as Harry S. Northrup)
Frank CurrierRandolph Monroe
William BlackBradford Duncan
Cecil OwenEric Johansen
Frederick TruesdellProf. Poole (as Fred C. Truesdell)
Redfield ClarkeMaj. Gen. Foster (as Redfield Clark)