Ex-movie gangster and current television producer Sheldon Leonard arranges with Mr. Mooney to shoot a scene for a TV pilot in the bank after hours.
Not recognizing the producer and overhearing him talk about "shooting at the bank," Lucy jumps to the conclusion that he must be a bank robber and is planning on a robbery.
She schemes with Mary Jane to capture the would-be bank robbers. They sneak into the bank at night, disguised as scrubwomen, to stop them.