 On their arrival in Mingan,on the north coast of the St-Lawrence s Gulf, a couple notice a young girl floating in the ocean. Thinking saving her, they discover that, in fact, she s able to stay a long time under water and was listening to the whale songs. She also have two special friends: a dolphin and a whale. But her world could change drastically near soon because her grand-father is about to sold his hostelry near the ocean.