On the tiny island of Rokesby, Addie helps her mother run a women's retreat. Dreaming daily of escape, she consoles herself by swimming in the ocean that surrounds them. On the neighbouring island, joined to Rokesby by a bridge at low tide, Sol has sought refuge at a wind-swept prayer house, grieving both his mother's death and his father's devastating betrayal. Alone and anxious, he takes comfort in birdwatching, books and the sounds of the sea. Introverts with turbulent pasts and wary hearts, Sol and Addie are both drawn to nature far more than to people - until they catch sight of one another in the wild. Can they break free from past lessons in love to risk a better future together?