A series of five programmes
Yorkshire cameraman Sid Perou , who has travelled the globe on caving explorations, penetrates the mysterious world beneath the Pennines, and takes us where television has never been before. Dow Cave
Dow Cave, near Kettlewell, has the worst accident record in British caving. Harry Long , an underground rescue team leader on year-long standby, shows why.
Film editor MARTIN WINTERTON Executive producer DOUGLAS B. SMITH
(First shown on BBC North: