Amy , a swimmer, has a rocky relationship with her Mom, sister and her stepdad. They take a vacation to the beach to see Lynne, her mom's godmother. One bad event leads to Amy staying at the beach for the entire summer. While wandering around, she finds the Mermaid Park. An amusement park of sorts that puts on a mermaid show. With her love of swimming, Amy just knows she has found the perfect summer job.