Jessie travels back to the magical world of the Realm to try to discover what has gone wrong in the Hidden Valley where the gnomes live and the fairy-apples grow.
On her fifth journey to the magical Fairy Realm, Jessie, this time on her birthday, travels all the way to the end of the rainbow and tries to help her new friends, the rainbow fairies.
When a little girl from the human world becomes lost in the magical Realm, Jessie's only hope of finding her is the wand of a brilliant but reclusive magician, and if she succeeds she must still face Mrs. Tweedie, who is up to no good.
Jessie returns to the magical world where her grandmother was born, where she deals with some griffins, dances with fairies, and borrows something to help her dance in her school concert.