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.
Evalyn Knapp
as Pauline Hargrave
Craig Reynolds
as Robert Ward (as Robert Allen)
James Durkin
as Prof. Hargrave
John Davidson
as Dr. Bashan
Sonny Ray
as Willie Dodge
Frank Lackteen
as Fang
Pat O'Malley
as Tim Sullivan
William Desmond
as Prof. Thompson
Josef Swickard
as Haggins, Foreign Consul
William Worthington
as American Consul
Adolph Milar
as Capt. Drake
James Wang
as Foo Chow, Bashan's Henchman
