After losing her parents, teenager Annabel Coleridge lives with her fisherman grandfather on a Caribbean island paradise surrounded by an extended family of loving but quirky oddballs and her best friend, a dolphin named Mitzy. Everything changes when her rich maternal grandparents arrive with a shifty lawyer to bring her back to New York. It's up to her grandfather, her friends, Desaray, her new social worker, her charming son, Mateo, and Mitzy to find a way for Anna to stay on the island home she loves so much.