It's been a busy summer on Cape Cod for four best friends, Jenna, Selena, Piper, and Ziggy. They can't wait to become summer lifeguards like the teens they see patrolling the beaches. But will the girls be able to provide the lifeguards the help they need when a hurricane threatens to strike? As the storm approaches Cape Cod, the friends face several challenges. Jenna was going to compete in the regional swim meet, but will it still take place? Selena tries a self-beauty treatment with unflattering results. Ziggy's mom will not take the hurricane seriously and refuses to evacuate. And Pippa finds herself with an unexpected visitor.