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.
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.
The kids are thrilled that Bernie has come back. But so has their old enemy Winston, who's about to kidnap the talented dolphin. Kevin and Holly must rescue their splashy friend before it's too late.
A brother and sister who befriend a badly sunburned dolphin separated from his family and uncover a secret plan that could destroy the beach and their new friend's home. The kids must devise a clever plan to stop the bad guys, protect the sea life, and, most importantly, save their best friend, Bernie.