Famous Five Have Plenty of Fun 

14. Five Have Plenty of Fun (1955)
George is not pleased when Berta, a spoilt American girl, turns up at Kirrin Cottage in the middle of the night dressed in disguise! But George hasn't got time to be jealous. Berta is in hiding from kidnappers, and she needs help. The Famous Five must risk danger to help out this stranger.
THE FAMOUS FIVE 1995/1997 Series
Jemima Rooper as George
Marco Williamson as Julian
Paul Child as Dick
Laura Petela as Anne
Elsie Kelly as Joan
Christopher Good as Quentin
Mary Waterhouse as Frances
Vanessa Cavanagh as Jo (June 16, 1984 - died November 3, 2002)