The truth about Pontarfynach children's home is about to be revealed by Mathias and Mared, but there is more than one person trying to stand in the way. Will the ugly facts about Dr Hugh Vaughan and the others finally be allowed to come to light? Or will the mystery remain forever buried in Devil's Bridge.
Elenco: Richard Harrington , Mali Harries , Hannah Daniel , Alex Harries , Aneirin Hughes .