A famous scientist and his beautiful daughter travel to Indochina to find an ivory disc that has the formula for a deadly gas engraved on it. An evil doctor and his gang are also looking for it.

Professor Hargrave (James Durkin), a noted scientist, is in Indo-China seeking an ivory-disc that is engraved with the formula for a deadly gas. Dr. Barshan ('John Davidson' (qb)), his assistant Wang (Frank Lackteen) and his henchmen are also after the sacred formula and will stop at nothing to obtain it. Professor Hargrave's daughter, Pauline (Evalyn Knapp), and flight-engineer Robert Ward (Craig Reynolds (I)') do their best to protect Hargraves from the band of villains.—Les Adams <[email protected]>

A famous scientist and his beautiful daughter travel to Indochina to find an ivory disc that has the formula for a deadly gas engraved on it. An evil doctor and his gang are also looking for it.—[email protected]