Home again at Ceann Mara Station, Roisin O'Byrne, a young lawyer with a passion for protecting the Darling River where her family has lived for almost two hundred years, finds herself embroiled in a battle. Her commitment to environmental justice pits her against formidable adversaries within the corporate landscape, working with her enigmatic boss Seth Brodie. As her family continue their quest to uncover the history of the settlement of Ceann Mara and the hidden life of one of its first settlers, Samuel O'Byrne, Roisin plunges deeper into the murky waters of corporate interests and corruption. However, her pursuit of justice becomes increasingly complicated by her undeniable attraction to Seth, a man whose ideals may be different to hers, yet whose magnetism is impossible to resist. Will Roisin risk everything, including her life, to expose the truth and save the Darling River?