Mokey's well-known for being a terrific painter, but when Red takes down one of her paintings and puts up one of Pedley Fraggles' (another great painter), she sets out to show everyone how much better of a painter she is. When she goes to the Trash Heap for a paintbrush, Marjorie gives her a magical paintbrush that, when used for the wrong reasons, takes control of the Fraggle using it. Mokey doesn't consider herself the jealous type, but she's proven wrong when she tries to out-paint Pedley and she can't seem to let go of the brush. Mokey needs to find a way to get the brush to quit controlling her, and realize why she loved painting in the first place. (thetvdb.com)