It's party time! A big bash for King Oberon and Queen Titania is underway in Fairyland. The Party Fairies keep everything running smoothly, until Jack Frost's goblins steal their magic party bags. Now parties everywhere aren't festive --- they're a flop! Melodie the Music Fairy's magic is missing, and party music is hitting all the wrong notes. Rachel and Kirsty have to change the goblins' tune!