A sunflower field and a beautiful friendship between a boy and a girl. After helping each other find their way out of a sunflower field, Sara and Bree become best friends. Both eleven years old, they spend a lot of time together, studying, playing, jogging, and biking. One day, Bree has to move because of his father's job. He leaves Sara behind with a promise to return with a bouquet of her favorite flowers. But an accident causes him to lose his memory. Will Bree keep his promise to Sara, and will their friendship endure?