A miniature film inspired by the music of Albinoni and the paintings of Witold Wojtkiewicz. The action takes place in an undefined fairy tale world. Four mysterious characters precede in the prologue the story of a little girl - a princess and a little boy - her knight, the prince. When the children overcome all obstacles and stand on the threshold of a happy future, the prince embarks on a great war expedition known in history as the "children's crusade."