A drama by Meic Povey based on the story of three Welshmen - Emyr Llewelyn, Owain Williams and John Albert Jones - who tried to block the plans of the Liverpool Corporation to flood the village of Capel Celyn in the Tryweryn Valley in the Sixties.

A journalist desperately tries to find his missing fiancee and finally uncover the truth behind a sinister folklore, leading him down a dangerous road of discovery.