Are there some boundaries that man is not to cross? Are there some things that can't be explained by science and we must look to the old ways to find the answers?

This week Paddy and Tricia discuss the strange events going on at an archaeological at the village of Devil's End. Why are some of the locals dead set against the dig going ahead and why are others preparing for its opening in secret? And why does the name of village strike fear into the hearts of The Doctor? All will be revealed when modern science meets the ancient magic of The Dæmons.