As the Enlightenment dawns, Hannah Sentance finds herself increasingly disturbed by her husband Walter's unyielding desire to transform the land around their estate into an elite Gentleman's Park. Local people will be evicted, an old way of life lost and an ancient oak tree felled. A symbol of resistance, wildness and a young woman's love affair with nature, the tree embodies Hannah's struggle for a way of belonging. But how can she - and it - survive?