7A couple's search through the historical wonders of the Welsh countryside for clues to the greatest discovery of all times: King Arthur himself.
Join them as their search takes them from the Pontcysyllte Aqueduct near Llangollen to the Devil's Bridge via the shore line St. Govan's Chapel in Pembrokeshire, all because of a clue found in an old oil painting of the Britannia Bridge on Anglesey.