Americans Tommy Baldwin and Joe Dugan are hired to transport a fabulous diamond from Shanghai to San Francisco. They will be paid handsomely on success or killed on failure. The diamond is stolen as they take possession of it. Americans Tommy Baldwin and Joe Dugan are hired to transport a fabulous diamond from Shanghai to San Francisco. They will be paid handsomely on success or killed on failure. The diamond is stolen as they take possession of it. Americans Tommy Baldwin and Joe Dugan are hired to transport a fabulous diamond from Shanghai to San Francisco. They will be paid handsomely on success or killed on failure. The diamond is stolen as they take possession of it. Americans Tommy Baldwin and Joe Dugan are hired to transport a fabulous diamond from Shanghai to San Francisco. They will be paid handsomely on success or killed on failure. The diamond is stolen as they take possession of it.