Carry On Dick apparently successful in wiping out crime and lawlessness – using all manner of traps and tricks to round the criminals up. However their main target is the notorious Richard "Big Dick" Turpin (Sid James), a highwayman who has evaded capture and succeeded in even robbing Sir Roger and his prim wife (Margaret Nolan) of their money and clothing. After this humiliation, Turpin becomes the Bow Street Runners' most wanted man, and thus Captain Fancey is assigned to go undercover and catch the famous Dick Turpin and bring him to justice. The Bow Street Runners nearly succeed in apprehending Turpin and
The Bank Dick movie which is shooting in town, goes on a bender, producer Mackley Q. Greene (Dick Purcell) offers the job to Sousé. While on his lunch break, it appears that he has caught one of the two men who robbed the bank where his prospective son-in-law, Og, has a job as a teller. The grateful bank president, Mr. Skinner (Pierre Watkin), gives Sousé a job as the bank's "special officer", a bank detective ("dick"). After being conned by swindler J. Frothingham Waterbury (Russell Hicks), Sousé convinces Og to steal $500 from the bank to invest in the questionable Beefsteak Mining Company.