Bobbie Walters, a cab driver in a Midwest city who is trying to save enough money to marry his sweetheart, Dorothy Wright, an attendant at the cigar and newspaper counter of a large hotel, is able to amass $15,000. He acts like a millionaire and soon is fleeced of the money by two Wall Street swindlers. Broke, Bobbie is forced to work as a bellboy at Dorothy's hotel. After a series of struggles and adventures, Bobby wins a fortune in the oil fields of Louisiana, despite the efforts of his rivals, who dynamite his oil derricks.

Notorious crooks "Hairpin" Annie and Sea Bass steal a suitcase on the train and discover that it is filled with scenarios. Its owner, Egbert Winslow, agrees to write a screenplay about the underworld with Sea Bass's help. Sea Bass, seeing a chance to expose a pal who has double-crossed him, describes "High-Shine" Joe and some of his underworld activities. Joe sees the film in a South American theater and recognizes himself. He goes to the motion picture studio determined to kill Egbert Winslow, but bank president Peyton, who has been robbed by Joe, appears simultaneously with the police and saves Winslow.