This is the story of an English family with three children - Roberta, Peter and Phyllis - during the Victorian era. They live in a beautiful house with their loving mother and father. But one day their lives turn upside down by a horrible event and they have to live with their mother in the country without their father. The children create themselves a warm, friendly new life in their new home near a railway line. The kindness of their hearts solves many problems and the story follows their adventures.