When the owner of a Yorkshire coal-mine decides to mechanize to increase profits, the mine's pit ponies are scheduled to be destroyed. So, three children plan to steal them to keep them safe. But when they're caught, it's up to the mine owners and the miners themselves to decide what's right.
Alastair Sim
Lord Harrogate
Peter Barkworth
Richard Sandman
Maurice Colbourne
Luke Armstrong
Susan Tebbs
Violet Armstrong
Andrew Harrison
Dave Sadler
Chloe Franks
Alice Sandman
Benjie Bolgar
Tommy Sadler
Prunella Scales
Mrs. Sandman
