Margaret Holt and her brother Victor set out to smash a narcotics ring responsible for their father's death. Young reporter John Howell and eccentric mystery writer Winthrop Clavering help unravel the truth about the murder.
Dawn, a young white girl who has been kidnapped in infancy and reared by Mooda, an African woman who operates a canteen in the German cantonment, meets and falls in love with Tom Allen, an English rubber planter who is a prisoner of war. Shep Keyes, who has joined the German troops, covets her but realizes he cannot possess her because she is betrothed to the tribal god, Mulunghu. On the eve of the ceremony, he learns of her love for Tom. Tom, meanwhile, is sent back to England, and when the English take the territory from the Germans, Shep tries to incite the natives, who are experiencing a drought, against Dawn because of her love of a mortal. Tom learns from Mooda that Dawn was stolen from a white trader and finds her seeking refuge in a convent. Shep arouses the natives, but Dawn declares her faith in the white man's God, and a thunderstorm brings relief to the parched land, after which Tom claims her for his bride.
The film takes place in the 18th century Austria and revolves around Prince Christian, commonly known as General Crack. His father had been a respectable member of the nobility but his mother was a gypsy. General Crack, as a soldier of fortune, spent his adult life selling his services to the highest bidder. He espouses the doubtful cause of Leopold II of Austria after demanding the sister of the emperor in marriage as well as half of gold of the Empire. Before he has finished his work, however, he meets a gypsy dancer and weds her. Complications arise when he takes his gypsy wife to the Austrian court and falls desperately in love with the emperor's sister.
When her circus-performer parents die in an accident, Christine (Pauline Garon) is raised by other circus-performers, including Hagan, a balloon-vender, and Pete Barman as her guardians. When she grows up, she asks to also become a performer, and Barman agrees. Bob Hastings (Cullen Landis) joins the traveling circus as its doctor, and he and Christine fall in love. This angers Barman, who is also in love with her.