Commander Peter Kent of the Royal Navy and his wife May have three children, ranging form five to eleven years: Peter, Anne and Fusty. Kent comes home after three years abroad with no idea how to handle the children. When Mary has to fly to Canada, Peter takes his children to his father's new country home, which turns out to be a windmill. They end up clashing with an American family in the neighborhood.
Kenneth More
as Tony Kent
Shelagh Fraser
as Mary Kent
Mandy Miller
as Anne Kent
Gary Billings
as Peter Kent
Fusty Bentine
as Fusty Kent
Ronald Squire
as Grampy
Olga Lindo
as Aunt Maud
Anita Sharp-Bolster
as Mrs. Buttons
Lionel Murton
as Harry
Jan Miller
as Sue
Nora Nicholson
as Miss Pettigrew
Michael Bentine
as The Professor
