At the dawn of the 20th century, following their father's arrest on suspicion of betraying state secrets, the three Waterbury children—Bobbie, Phyllis and Peter—move with their mother to Yorkshire, where they find themselves involved in unexpected dramas along the railway by their new home.
Dinah Sheridan
Mrs. Waterbury
Bernard Cribbins
Albert Perks
William Mervyn
Old Gentleman
Iain Cuthbertson
Charles Waterbury
Jenny Agutter
Roberta 'Bobbie' Waterbury
Sally Thomsett
Phyllis Waterbury
Gary Warren
Peter Waterbury
Peter Bromilow
Doctor
