Lili, a feisty 10-year-old girl, has always swam topless. When her parents force her to wear a bikini top for a trip to the water park, she rebels: why should she hide her flat chest when her friends, all boys, don't have to?

Camille wanders through the countryside talking with frogs and chickens: she sails through life as a carefree soul. But for her older sister, the introverted Mylia, things are more complicated. Mylia is lost between the uncertainty in her family life, the superficial atmosphere at her new school and her first experiences at house parties. It is Camille who eventually introduces Mylia to Jimmy. The boy from the nearby Abenaki reserve is different and he encourages her to break free.