Lionel finds himself being pursued by Nazis and mobsters who are after the diamonds that Tenspeed hid on him. Lionel manages to talk Tenspeed into doing the right thing by appealing to his conscience (such as it is) and running a scam to get everyone arrested. With Tenspeed out on parole and needing a job, Lionel decides to finance a new detective agency with the reward money to fulfill his lifelong dream of being a hard-boiled detective.