Always having a love for the sea, sixteen year old Dana Millington spends most of her days dreaming of becoming a mermaid. Constantly being teased by some of the other girls in her class for being shy and not as pretty as they are, Dana and her best friend Becky Lannon are often found hanging out together on an old dock where they talk about finding love and buried treasure. After dropping her glasses into the sea's murky water Dana thinks her vision is playing tricks on her when she finds herself looking into the water at an attractive young merman who's looking back up at her. While trying not to fall in love with a prince of the sea, Dana's life changes for the better as she overcomes her fear of swimming and becomes one of the prettiest and most popular girls in her school.