Ranch owner John Hardy becomes the dupe of Cleo Dade when he marries her and brings her home to be a mother to his daughter Rose.

Japanese leading man Sessue Hayakawa stars as John A. Ghengle, the Oxford-educated son of an Arab chieftain. Entering into a business partnership with Sir Harry Falkland (Jack Holt), a notorious roue, Ghengle relocates to Sierra Leone, where he falls in love with French-Sudanese girl Maida Verne (Florence Vidor.) Upon proposing marriage, Ghengle is turned down and hotly demands to know why.

Lois Fox, upon whose shoulder is branded a Chinese idiograph resembling the letters "A. Y.," is rescued from a gang of Chinese ruffians by Brice Ferris. His servant Ming, in attempting to steal from her finger a ring that bears a mysterious green seal, is killed, and soon afterward a stranger named Strang arrives, also in search of the girl. Despite Brice's efforts to protect her, Lois is abducted and taken to the headquarters of Lao Wing, the leader of a secret Chinese society known as the Tong.