Kirt Reid, having been charged with murder and larcency, decides to escape to China where he is recruited by a White Russian who is working against Chinese intelligence services and ends up being blackmailed into assassinating a Japanese spy.
Christopher Banks, an English boy who was orphaned after his parents disappeared in Shanghai under suspicious circumstances, returns to Shanghai twenty years later in the hopes of learning what really happened to his parents.
When Tony gets in trouble near his parents' restaurant in the Bronx, his parents send him to live with and work for his uncle in Shanghai for the summer. There he meets and takes lessons from the Chinese painter Zhu Qizhan.