It is harvest time and Primrose Wood mouse is helping her father collect berries. Soon Primrose is sent home but instead, she decides to go for a walk in the cornfield. As she wanders further and further away she becomes lost and no one in Brambly Hedge knows where to find her! The mice of Brambly Hedge have many adventures but they always have time for fun too. All through the year, they mark the seasons with feasts and festivities and, whether it be a little mouse's birthday, an eagerly awaited wedding or the first day of spring, the mice never miss an opportunity to meet and celebrate.