When the Prickle Sisters throw their rubbish out of the windows instead of recycling, their rubbish dump soon turns Windybottom into Stinkybottom, and the school concert may have to be cancelled. Willow is determined to get to the bottom of the terrible stink. But will she succeed? With the help of her magic flute and butterflies, our heroine soon saves the day and turns litter to glitter!