Gwen and Evan live in the beautiful Elan Valley, where every day is filled with vibrant colours and cheerful sights. But when a mysterious “colour thief” arrives with the endless rain, the valley’s colours begin to vanish, leaving behind only shades of grey. Flowers, fruit, and even the birds lose their sparkle. Gwen and Evan set out on a mission to find the colour thief, and their search leads them to a surprising secret. Can they bring the colours back to Elan Valley? Discover how a little hope and the right attitude can make the world bright again.