Mysterious Mr. Moto (1938) - Posing as a Japanese murderer, Moto escapes from Devil's Island with a member of the League of Assassins to find out not only who is their next victim but to identify the mysterious man at the top.
Mr. Moto Takes a Vacation (1939) - While pretending to be vacationing in San Francisco, Moto is actually keeping an eye on the crown of the Queen of Sheba, surefire bait for the master thief known as Metaxa.