In a faraway kingdom, a jealous queen turns her eleven stepsons into swans. Only their sister Elisa can save them - but the journey might cost more than she is prepared to give. And time is running out.

Follow Elisa as she searches for her beloved brothers through menacing forests, to ocean shores and into the clouds themselves. Colour in her desperate attempt to save the princes, even as it takes her to graveyards, prison cells and bonfires...