 Dr. Ebell Smith, whose real name is Schmidt, is a German secret agent working on the west coast of the USA. One of his associates is Kitty Little, a young woman who idealizes both Germany and her brother, who is in the Kaiser s army. They have been obtaining American military secrets through their contact with Major Northfield, who is in charge of a quartermaster depot. Nara-Nara, a young man serving in the secret service of Japan, which is allied with the USA, knows that there is a security leak in Northfield s office. An important troop transport order is soon to come through, and Smith abducts Northfield s secretary so that Kitty can take her place. Meanwhile, Nara-Nara sets up an office as an importer next to Northfield s office, in hopes of learning how the Germans are obtaining their information.