A detective poses as a jewel thief and joins a bunch of other crooks sailing from Europe to New York in search a famous gem. He falls in love with one of the crooks.

Married book-dealers Joel & Garda Sloane try to clear a friend in the murder of a rival book-seller.

While in Shanghai reporting on the Sino-Japanese war, Chris Hunter, a shrewd news reporter, meets pilot Alma Harding. She does not trust him, but he manages to hire her as his assistant. During an adventurous expedition through the jungles of South America, her opinion of him begins to change.