Magazine photographer Ann Larkin is snapping photos at Mexico's National Museum when she sees Brod Williams steal a painting from its frame. Convinced that Brod is the notorious art thief known as "The Wildcat," Ann follows him into the street and accuses him of being the thief. Even though the police attest that Brod is a New York City police detective, Ann remains dubious.
Two playboys try to forget previous romances in Singapore – until they meet a beautiful dancer.
The nefarious Dr. Fu Manchu searches for the keys to the tomb of Genghis Khan, in order to fulfill a prophecy that will enable him to conquer the world. His nemesi, Dr. Nayland Smith and his associates fight to keep the evil doctor from getting his hands on the keys. In 1943 the serial was edited together into a feature movie also called Drums of Fu Manchu.
Playboy Bill Carey woos a half-caste beauty in French Indochina, but her second-class legal status makes a formidable barrier.