Wolf lives life to the fullest: he does everything he fancies. Becoming a stuntman? Going to the Moon? Catching a piece of the rainbow? He takes on every challenge, for better or for worse.

Four best friends have a secret: after school, they climb up to their hidden tree house. It contains a priceless treasure: books! Each day, the children tell one another stories, travelling to exciting fairy-tale worlds.

Bears and mice shouldn't really be friends. Despite this, Ernest, a clown and musician, provides a home to Célestine, a little orphan who loves drawing and writing. These two artistic souls together affront life´s day-to-day problems, supporting one another and trying to be as happy as possible.