With their headmistress under lock and key in her majesty's prison, the St Trinian's girls find themselves under the protection of the army. However, when the sixth form take a fancy to winning a trip to Italy through means fair or foul, the army discover this is one battle they can't win. Let loose in Europe, it is not long before St Trinian's have succeeded in endangering European relations.
Terry-Thomas
Capt. Romney Carlton-Ricketts
George Cole
"Flash" Harry
Joyce Grenfell
Sgt. Ruby Gates
Alastair Sim
Miss Amelia Fritton
Sabrina
Virginia
Lionel Jeffries
Joe Mangan
Lloyd Lamble
Superintendent Samuel Kemp-Bird
Raymond Rollett
Chief Constable
