When Rachel and Kirsty arrive at Rainspell Island for vacation, they have no idea what kind of magical adventure awaits! The seven Rainbow Fairies have been banished from Fairyland by the wicked Jack Frost. If they don't return soon, Fairyland is doomed to be colorless and gray. The girls have already found one Rainbow Fairy, but now Amber the Orange Fairy is trapped in a seashell! Can they rescue her, too?