1950s British comedy set in a boys' school facing closure. Cardew the Cad (Cardew Robinson) is a wealthy mature student who has yet to graduate. With the school in trouble, Cardew finds himself facing bribery at the hands of scheming headmaster Dr. Septimus Jankers (Fred Emney) and his accomplice, Harry the Scar (Freddie Mills).

Eleventh entry in the 'Carry On' series. Marshall P. Knutt (Jim Dale), a former sanitary engineer, becomes the sheriff of Stodge City in the Wild West and must help a young woman beat the Rumpo Kid (Sid James), the outlaw who shot her father. Those getting off their horses and drinking their milk include Kenneth Williams, Charles Hawtrey, Joan Sims and Bernard Bresslaw (making his 'Carry On' debut).