With their marriage on the brink of unravelling, Isla and Sam activate an old promise to hike Western Australia’s Bibbulmun Track – a last chance to determine the fate of their relationship. Tensions run high as they tackle the eight-week journey through ancient forests toward the wild southern sea. The challenge brings out the best and worst in each-other. Chance encounters with other walkers deepen our understanding of their vulnerabilities and desires and remind us of the profound power of a good bush walk. As unexpected revelations arise, the journey spirals in new directions. Emerging from the landscape with a renewed perspective, Isla and Sam walk toward their decision with heart and humour.