On Barn Tor, as on any English sporting estate, the poacher/gamekeeper dynamic has developed, over centuries, into its present state of poorly concealed dislike and with one unwritten, explicit rule; do not cross the line. So, what do you do when someone you love ceases to abide by these rules? The Quarry follows the lives of two families and finds that, when affairs of the estate are blurred by affairs of the heart, the idyllic country-life veneer is soon stripped away and it will only take one slip, one slight misreading of just who and what the quarry is, to ignite a volatile cocktail of suppressed emotions, raw passion and explosive confrontation.