A San Francisco singer flees Chinatown on murder charges and poses as a missionary in Alaska.

Heyst, a hermit on his own tropical island, plays unwilling host to red-headed stowaway Alma. Danger looms...

A Chinese wife returns to the American family she left behind in Southeast Asia and then moves in on her daughter's (Lupe Velez) beau (Lloyd Hughes).

Joan Fry, a society woman, falls in love with Chuck Riley, the white-leader of a powerful gang in Chinatown, and he quickly drags her down into the depths with him. But seeing her so much in love with him causes him to realize he isl in love with her, and he determines to lift her up again. "Boston" Charley, the rival gang-leader, has other plans.

When Mandarin Wu's unmarried daughter becomes pregnant by a young Englishman, he seeks vengeance.

U.S. Marine Sergeant O'Hara has his hands full training raw recruits, one of whom, 'Skeets' Burns, is a particular thorn in his side. If Burns's lackadaisical approach to the military were not bad enough, he also makes advances on nurse Nora Dale, whom Sergeant O'Hara secretly loves. Nora is oblivious to O'Hara's feelings and is attracted to the handsome 'Skeet.' But an indiscretion turns her against him, and it takes an expedition to China and a battle with a warlord's bandit brigade to sort things out among the nurse and her two Marines.

After being educated in England, Daisy Forbes returns to China, the country of her birth, and discovers that her father has recently died and that she has become a social outcast, owing to the public revelation that the oriental nurse who raised her was actually her mother...