The adventure starts when cousins Fone Bone, Phoney Bone, and Smiley Bone are run out of Boneville and later get separated and lost in the wilderness, meeting monsters and making friends as they attempt to return home. "Phoney Bone risks everything on one last get-rich-quick scheme for the town's annual Great Cow Race. As usual, Phoney's plan go disastrously awry, and Boneville seems farther away than ever. Meanwhile, ominous signs indicate that a war is brewing, and Fone Bone finds himself helping his friends defend their idyllic valley from a formidable enemy"--Back cover.