Throughout the British Isles, structures stand which defy explanation. Despite the best modern efforts, they remain shrouded in myth and legend, and their fascination remains undimmed. Featuring location footage and dramatized re-creations, this program provides a superb record of the ley lines, chalk hill-drawings and stone circles of Britain. It visits sites such as Glastonbury Tor and Stonehenge, and explores myths which ensure they never lose their place in the popular imagination.