When this is cancelled, he drunkenly rants about his opinions about various subjects, including his dislike of his homeland, the United States of America.
This results in Sonya Karaloff influencing him to listen to an offer by Mr. Moto to fly across the Pacific in a Japanese plane.
During a trip by ship to Shanghai, Casey has several encounters that reveal there are other people with interest in whatever it is that Mr Moto wants.
Casey has another encounter with his friend Jim Driscoll to try to explain the recent events and how they may be linked to America's interests.
When he escapes with Sonya, they find the secret message and agree to fly to a remote village in China to recover a chemical formula.