Meet the Bone cousins, Fone Bone, Phoney Bone and Smiley Bone, three misfits who are run out of Boneville and find themselves lost in a vast uncharted desert. They make their way into a deep, forested valley filled with wonderful and terrifying creatures. With the help of the mysterious Thorn, her tough-as-nails Gran'ma Ben and the Great Red Dragon, the boys do their best to survive in the middle of brewing trouble between the valley's denizens. It will be the longest - but funniest - year of their lives!