The Terror of Blue John Gap
- Episode aired Aug 11, 2021
- 20m
When Doctor James Hardcastle is sent to Derbyshire to recover from an illness, he finds far more than just his good health.When Doctor James Hardcastle is sent to Derbyshire to recover from an illness, he finds far more than just his good health.When Doctor James Hardcastle is sent to Derbyshire to recover from an illness, he finds far more than just his good health.