After losing her parents, 14-year-old Annabel lives with her fisherman grandfather on an island paradise. She is surrounded by an extended family of loving but quirky neighbors and her best friend – a dolphin named Mitzy. Everything changes when her maternal grandparents arrive with a shifty lawyer to bring her back to New York. It’s up to Annabel and her friends to figure out how to save the day and prove that love conquers all!

On a tropical island vacation, a young boy’s friendship with a playful and friendly dolphin helps him find the courage to get back in the water after the sudden loss of his mother.

Italian Stefano arrives on Dolphin Island off the coast of Georgia and gets a job as a handyman at a motel. He strikes up a romance with an emotionally troubled young woman, who works as a motel maid/laundress and stripper in a small coastal town in Georgia.

When 15-year-old Vicky Austin, her sister Suzy and little brother Rob visit their grandfather on Seven Bay Island, Vicky faces several unexpected challenges. Her beloved grandfather, retired Reverend Eaton, seems to be seriously ill, but tries to pretend that nothing is wrong. Vicky met the rich but emotionally troubled Zachary Gray the previous summer, and he reappears to renew the acquaintance. Another boy, 17-year-old Adam Eddington, recruits Vicky to help him with a research project, working with a dolphin called Basil. Vicky discovers she can communicate telepathically with the dolphin and his mate – and possibly with Adam as well

Sandy Ricks is sent by his mom to Coral Key, a rustic island in the Florida keys, to spend the summer with his uncle Porter Ricks. Sandy dislikes everything about his new environment until a new friend comes into his life, a dolphin named Flipper, that brings uncle and nephew together and leads Sandy on the summer adventure of a lifetime.