The Visitors
12th May 1968The Coalminers
19th May 1968The Message
26th May 1968The Foreign Gentleman
2nd June 1968The Secret
9th June 1968The Rescue
16th June 1968The Meeting
23rd June 1968At 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.

