Mysterious old solicitor Mr. Blunden visits Mrs. Allen and her young children in their squalid, tiny Camden Town flat and makes her an offer she cannot refuse. The family become the housekeepers to a derelict country mansion in the charge of the solicitors. One day the children meet the spirits of two other children who died in the mansion nearly a hundred years prior. The children prepare a magic potion that allows them to travel backwards in time to the era of the ghost children. Will the children be able to help their new friends and what will happen to them if they do?
as Mr. Frederick Percival Blunden
as Lucy Allen
as James "Jamie" Allen
as Sara Catherine Latimer
as Georgie Richard Latimer
as Mrs. Wickens the Housekeeper
as Mrs. Richard Allen
as Uncle Bertie (Albert)
as Bella (Arabella)
as Mr. Wickens
as Thomas Mortimer
as Meakin, Mrs. Wickens' Servant
as Mr. Clutterbuck
as Mr. Claverton
as Sexton
as Vicar
as Elsie Tucker
as Bus Driver
