Sir Gawain and the Green Knight is one of the classic poems of medieval English literature.
Yet the identity of its author is unknown and the landscape in which the story unfolds - from the Wirral to the West Midlands - isn't the one normally linked with the Arthurian legends.
As two of today's poets, Simon Armitage and Bernard O'Donoghue, embark on new translations, Jeremy Noel-Tod explores their interest in Gawain and its significance for today's readers.
And he travels to the area where the poem is set, in search of its mysterious origins.
Jeremy Noel-Tod is joined by poets Simon Armitage and Bernard O'Donoghue to explore Sir Gawain and the Green Knight, one of the classic poems of medieval English literature.