When Rachel and Kirsty arrive at Rainspell Island for vacation, they have no idea what kind of magical adventure awaits! Fairyland is home to seven colorful sisters. Together, they are the Rainbow Fairies! They keep Fairyland dazzling and bright. But when evil Jack Frost sends them far away, the sisters are in big trouble. If they don't return soon, Fairyland is doomed to be gray forever! A trail of sparkly yellow dust lands Rachel and Kirsty in a very sticky situation! Could Sunny the Yellow Fairy be at the bottom of it?